Search: If each atom has a radius of 1.43 , what is the length of a side of the unit cell?

Number of results: 11,587

chemistry
The radius of an atom is about 10,000 times as large as its nucleus. If the atom were enlarged such that the radius of its nucleus was 1 inch, what would be the radius of the atom in meters? I need the formula to follow so that I can solve this problem.
Thursday, December 1, 2011 at 12:45am by george

chemistry
I may have missed something here but if the radius of the atom is 10,000 times the radius of the nucleus, then if the radius of the nucleus is 1", then the radius of the atom is 10,000". Convert that to meters.
Thursday, December 1, 2011 at 12:45am by DrBob222

Why does the He atom have a smaller radius than th
(a) Why does the He atom have a smaller radius than the H atom? (b) Why is the He atom smaller than the Ne atom?
Tuesday, August 17, 2010 at 5:23pm by gabyj

physics
In Bohr's model of the hydrogen atom, the radius of an orbit a. is proportional to n2. b. is smallest for the highest energy state. c. increases when a photon of light is emitted from an excited atom. d. can have any value that is larger than the ground-state radius. e. ...
Saturday, August 15, 2009 at 12:46pm by jeff

Chemistry
Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 (femtometers) and the radius of the atom is approximately 70 (picometers). The volume of the nucleus is 8.2×10^−8 pm^3 And the volume of the atom is 1.4×10^6 pm^3 ...
Wednesday, August 31, 2011 at 7:06pm by Brittany

Chemistry
Which has a larger radius, the oxygen atom (O) or oxygen ion (O-2) ? Explain. Isn't the ion bigger because negative ions are bigger than atom's radius. im not sure though.
Saturday, October 23, 2010 at 4:56pm by Sheryl

Physics
Can someone help me with this, i have started it but cant get it to work out. The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest, or “ground” state...
Saturday, November 10, 2007 at 7:45am by Aaron

physics
The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.0 10-15 m. The single electron in a hydrogen atom normally orbits the nucleus at a distance of 5.3 10-11 m. What is the ratio of the density of the hydrogen nucleus to the density of the complete ...
Friday, December 1, 2006 at 10:43am by MIke

physics
An ionized helium atom has a mass of 6.6*10^-27kg and a speed of 4.4*10^5 m/s. The atom moves perpendicular to a 0.75-T magnetic field on a circular path of radius 0.012m. Determine whether the charge of the ionized helium atom is +e or +2e. Can anyone please give me some ...
Tuesday, April 1, 2008 at 2:52pm by Kelly

Physics
A doubly charged helium atom (mass = 6.68 x 10-27 kg) is accelerated through a potential difference of 3.00x 103 V. What will be the radius of curvature of the path of the atom if it is in a uniform 0.410 T magnetic field?
Monday, December 1, 2008 at 2:35pm by Brynlie

chemistry
The edge length is 502 pm (convert to cm), then a*(3)1/2 = 4r where r is the radius of the atom. The volume of the atom is V = (4/3)*pi*r3
Tuesday, May 18, 2010 at 3:59pm by DrBob222

chemistry
Assume that the entire mass of an atom is concentrated in its nucleus, a sphere of a radius 1.5 x 10 to the -5 pm. If the mass of the atom is 2.39 x 10 to the -22 g, what is the density?
Monday, September 29, 2008 at 9:41pm by andrew

Chemistry
Why, in terms of atomic structure, is the radius of an Na atom larger than the radius of an Na+ ion?
Saturday, November 20, 2010 at 2:12pm by danny123

CHEM**
Decreasing atomic radius means, to me, that we list the lagest radius first and the smallest radius last. That is the way they are listed above which is what the problem asked for. I don't understand why decreasing atomic radius and decreasing atomic size are not the same...
Tuesday, November 13, 2007 at 8:04pm by DrBob222

Science
Atom building game board has 17 protons, 18 neutrons, and 18 electrons. *What is the atom that's represented on the game board. *What is the total charge on this atom? *What is the mass # of this atom? *What do you call an atom that different #'s of protons and ...
Friday, September 21, 2007 at 8:51pm by Sonic

Chemistry
An estimation of the radius of a lead atom: a. You are given a cube of lead that is 1.000 em on each side. The density of lead is 11.35 g/cm3. How many atoms of lead are contained in the sample. b. Atoms are spherical; therefore, the lead atoms in this sample cannot fill all ...
Sunday, November 13, 2011 at 8:57pm by Arnol

chemistry
Determine the radius of the largest atom that can be accommodated in the interstices of BCC iron (Fe) without stress. (Hint: the center of the largest site is at ½, ¼, 0; draw a unit cell - it helps.) Radius (in centimeters):
Tuesday, April 2, 2013 at 11:41pm by adex

Science
Hello van some one show me how to draw a dot and cross diagramm for 1 lithium atom and 1 fluorine atom(Lif) and also a diagram for 1 magnesium atom and 1 oxygen atom (MgO) Thankyou Paul.
Monday, March 28, 2011 at 4:07am by Paul

Physics
Is the trend for ionic radius just that for metals, they are smaller than the nuetral atom and for non-metals, and for non-metals, they are bigger than the neutral atom? Or is there another specific trend?
Saturday, February 26, 2011 at 2:33pm by Emily-Help Please!

AP Chemistry--correction
I quoted radius above that obtained 2.86 x 10^-8 but that isn't what I found. I found radius of the iron atom to be 1.24 x 10^-8 cm.
Saturday, November 14, 2009 at 11:50am by DrBob222

AP chem
Second question: In the LiCl structure shown in 9.18 [LiCl's lattice, where the "Cl- ions are in contact with each other, forming a face centered cubic lattice."], the chloride ions form a face-centered cubic unit cell 0.513 nm on an edge. The ionic radius of Cl...
Thursday, December 7, 2006 at 6:17pm by chris

urgent Help .. Chemistry
If you assume that an atom is a hard sphere, you can estimate the average volume of space it occupies using basic geometry. Estimate the volume,V , of one sodium atom (Na) using its metallic radius of 186 pm . Express your answer in cubic picometers.
Sunday, November 9, 2008 at 1:05pm by robert

chemistry
All right, you've got the radius of an atom. Whenever you get a problem asking for the volume, density, etc. you assume the atom is a sphere. The diameter of a barium atom would then be: 217pm * 2 = 434pm Either convert 4.33mm to pm or 434pm to mm. I'll convert 4.33mm ...
Sunday, September 25, 2011 at 1:23pm by Cadavz

Chemistry
Which atom has the smallest valence p atomic orbital? -Carbon -Nitrogen -Sulfur Why? A. That atom has the highest electronegativity. B. That atom has the fewest number of electrons. C. That atom does not have electrons in p orbitals. D. The valence electrons for that atom have...
Thursday, April 19, 2012 at 7:24pm by Pooya

physics
Until you get to the electron, no work needs to be done because there is no net charge on the atom. From the electron ball (R1 radius) in to the proton ball (R2 radius), there is a repulsive force of F = k/r^2 form (I am leaving the Coulomb law numbers for you to do) the work ...
Thursday, April 24, 2008 at 8:16pm by Damon

Chemistry
For each of the following, enter the number of covalent bonds that the atom can form: (A) One atom of carbon (B) One atom of sulfur (C) One atom of nitrogen with no net charge (D) One atom of nitrogen with positive net charge (E) One atom of oxygen with no net charge (F) One ...
Thursday, March 7, 2013 at 1:31am by qwerty

chemistry
the model of the atom that pictured the atom with electrons struck randomly throughtout the mass of the atom was called the
Wednesday, October 27, 2010 at 7:48pm by 000

chem
1. under what circumstances is the molecular geometry around a single central atom the same as the electron group geometry around the central atom? 2.If all of the electron groups around a single central atom are bonding, and the same outer atom is bonded to the central atom ...
Monday, April 28, 2008 at 12:00am by natash

physics
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. After the impact, the neon atom travels away at a 55.2° angle from its original direction and the unknown atom travels away at a 51.8° angle. What is the mass of the unknown atom? [...
Thursday, October 20, 2011 at 11:30pm by kago

Zoology
electron H-atom C-atom Na-atom glucose molecule nucleotide mitochondria fungal cell heart tundra
Sunday, August 29, 2010 at 11:28am by Anonymous

Chemistry
which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen? (1) carbon (2)nitrogen (3)oxygen (4) fluorine
Wednesday, December 1, 2010 at 11:08pm by Anonymous

chemistry
Molar Volume of Sodium If you assume that an atom is a hard sphere, you can estimate the average volume of space it occupies using basic geometry. Question Estimate the volume, V , of a sodium atom ( Na ) using its metallic radius of 186
Sunday, November 9, 2008 at 12:46am by unkname

CHEMISTRY
The factor that affects how easily an electron can be removed from an atom is the A. structure of the atom. B. size of the atom. C. temperature of the environment. D. surrounding atoms.
Wednesday, June 18, 2008 at 12:14pm by DELIA

Physical Science
The factor that affects how easily an electron can be removed from an atom is the A. surrounding atoms. B. temperature of the environment. C. structure of the atom. D. size of the atom.
Friday, March 7, 2008 at 7:05pm by Anonymous

chemistry
edge^3 = volume mass = volume x density fcc = 4atoms/unit cell so mass/4 = mass 1 atom 1 atom x 6.02E23 = atomic mass. 4*radius = edge*21/2</sup Post your work if you get stuck.
Sunday, December 4, 2011 at 9:49pm by DrBob222

Unit Cells
I don't get the 47.453 A^3 for volume. That seems far too large (of course that depends upon what A stands for). Whatever the volume, then V1/3 = length of an edge of the unit cell = a. Then 4r = a(21/2). When you have found r (radius of the atom), then volume of the atom...
Sunday, May 9, 2010 at 11:00pm by DrBob222

Physics
Could someone help me with these questions. . . please 1. How does Rutherford’s model of the atom account for the back – scattering of alpha particles directed at the gold leaf 2. The higher the energy level occupied by an electron in the hydrogen atom, the larger ...
Monday, November 12, 2007 at 2:40pm by Mike

Science
Suppose a large atom bonds with a small atom. Predict whether the properties of the new molecule will be the same as the large atom, the same as the small atom, or different from both atoms.
Wednesday, November 19, 2008 at 8:16pm by ivana

physics
The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest, or “ground” state, n=3 is the third state, and so on. If the atom’s diameter is 1x10-10m ...
Tuesday, November 6, 2007 at 10:29am by Will

chemisty problem help
Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 70 pm. Calculate the volume of the nucleus and the volume of the atom. What percentage of the carbon atom's volume is occupied by the nucleus? Can someone tell me how to do this? Volume...
Thursday, February 8, 2007 at 9:42pm by Tagen

Physics
The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest or “ground” state, n=3 is the third state, and so on. If the atom’s diameter is 1x10-10m in...
Thursday, July 1, 2010 at 2:16pm by Richard

chemistry
SOMEONE CAN PLZ EXPLAIN IN DETAIL HOW TO SOLVE THIS PROBLEM..THNKS Molar Volume of Sodium If you assume that an atom is a hard sphere, you can estimate the average volume of space it occupies using basic geometry. Question Estimate the volume, V , of a sodium atom ( Na ) using...
Sunday, November 9, 2008 at 1:05pm by unkname

Zoology
Can you rank these from the smallest to the largest? Heart carbon atom sodium atom electron nucleotide tundra mitochondria glucose molecule fungal cell hydrogen atom
Sunday, August 29, 2010 at 11:28am by Marcus

Physics
A hydrogen atom is in its third excited state (n=4). Using Bohr theory of the atom calculate (a) the radius of the orbit, (b) the linear momentum of the electron, (c) the angular momentum of the electron (d) the kinetic energy (e) the potential energy, and (f) the total energy...
Saturday, April 28, 2012 at 3:27am by Chi

Chemistry
Which atom has a larger atomic radius, Ca or Ra? Why?
Monday, November 15, 2010 at 8:55pm by Jazmin

chemistry
but 400nm is the radius of the gold particle not the atom. Pls help!!
Tuesday, February 23, 2010 at 5:50am by kat

Physics
The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n^2, where n=1 labels the lowest or "ground" state, n=3 is the thrid state, and so on. If the atom's diameter is 1 x 10^(-10...
Monday, November 16, 2009 at 3:08pm by Lauren

chemistry
Sketch one face of a simple cubic unit cell of side a for the case when the maximum fraction of the lattice in volume is filled with atoms, and each atom is approximated by a hard sphere. (ii) What is the radius of each atom in terms of a? (iii) What is the volume of each atom...
Sunday, February 19, 2012 at 9:26am by ali

engineering
Sketch one face of a simple cubic unit cell of side a for the case when the maximum fraction of the lattice in volume is filled with atoms, and each atom is approximated by a hard sphere. (ii) What is the radius of each atom in terms of a? (iii) What is the volume of each atom...
Sunday, February 19, 2012 at 9:24am by ali

Chemistry
This article quote 32 to 225 pm for the radius. Double that for the diameter. http://en.wikipedia.org/wiki/Atom#Shape_and_size
Saturday, December 10, 2011 at 7:24pm by DrBob222

Chemistryy
Identify the observations of Ernest Rutherford's experiment with the gold foil. Where he experimented on alpha particles and deflection. Check all that apply.... 1) a positive charge is spread equally over the atom 2) THE MAJORity of the space inside the atom is empty ...
Monday, August 29, 2011 at 12:14am by Dalton

Chemistry --- chemistry ---
Another way of looking at it--an ion is an atom (sometimes more than one atom) with a + or - charge on it. example of one atom--Na atom; Na^+ ion examle of more than one atom--SO4^2-
Thursday, September 13, 2012 at 2:08am by DrBob222

Chemistry
S neutral atom has a certain radius. Now if you add two additional electrons to the outside shell, the radius will become considerably larger BECAUSE the electrons, going into a shell already occupied by six other electrons, repel each other.
Thursday, October 21, 2010 at 9:57pm by DrBob222

chemistry
1) what flaws exsit in Dalton's model of the atom? 2) what flaws exist in Thompson's plum pudding model of the atom? 3) what flaws exist in Rutherford's model of the atom? 4) what flaws in Bohr's model of the atom? 5) do any flaws exist in the modern quantum ...
Wednesday, November 14, 2007 at 8:01pm by Anonymous

physics
The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on. If the ...
Thursday, August 4, 2011 at 11:10am by stacy

chemistry
1 The size of cation is ...... and the anion is ........ than atom. 2 The removal of an electron from an atom results in the formation of a ....... the size of which is ........ than that of the atom.
Thursday, May 3, 2012 at 6:33am by pooja

science
The radius of the Iron atom is 124 pm. How many of these will span a distance of 50.5 m..
Monday, September 5, 2011 at 1:56pm by megan

chemistry
a metal crystallizes in the face centered cubic crystal structure with a unit cell edge of 5.48 x10 power of -8 cm. the density of the metal is 6.90 g per cubic cm. a. what is the mass (g) of a single atom of this element. b. what is the atomic weight of the element (g per mol...
Sunday, December 4, 2011 at 9:49pm by amanda

science
What's to understand. If brackets (you used parentheses which is the usual way to do it) or parentheses, it means to multiply everything inside the parenthese by the number in the subscript. So. Mg(OH)2 has 1 Mg atom, 2 O atoms and 2 H atoms. MgO has 1 Mg atom and 1 O atom...
Friday, November 2, 2007 at 9:29pm by DrBob222

chemistry
a metal crystallizes in the face centred cubic cubic crustal structure with a unit cell edge of 5.48 x10 power of -8 cm.the density of the metal is 6.90g per cubic cm. a. what is the mass in grams, of a single atom of this element. b. what is the atomic weight of the element (...
Sunday, December 4, 2011 at 9:10pm by amanda

chemistry
Which atom in each of the following pairs has a larger radius? a) Na or K b) V or Zn c) V or Ta d) Li or Ba
Sunday, November 11, 2012 at 1:54am by lynn

chemistry
Estimate the volume of one sodium atom using its metallic radius of 186pm please help
Monday, November 10, 2008 at 9:23pm by dre

chemistry
1.which of the following is the most polar bond? explain n-f c-f h-f o-f 2. in the trigonal bipyramidal geometry, which position - axial or equatorial - do nonbonding electrons prefer? why? 3.under what circumstances is the molecular geometry around a single central atom the ...
Friday, April 23, 2010 at 1:55am by katherine

Chemistry
so you have an atom at each corner. Draw a line thru corner to corner along the diagnol. One atom in the center of the face. So the length of the line is 4radii. So the edge of the cell must be .707*4 radii. You can get the radii from the periodic table. Your teacher might ...
Sunday, February 21, 2010 at 8:09pm by bobpursley

physics
A hydrogen nucleus has a radius of 1 x 10-15 m and the electron is about 5.3 x 10-11 m from the nucleus. Assume the hydrogen atom is a ball with a radius of about 5.3 x 10-11 m and the nucleus is a ball with a radius of 1 x 10-15 m. How much work (in electron volts) must be ...
Thursday, April 24, 2008 at 8:16pm by shanika

chemistry
The six orbitals on the central atom, As, are sp^3d^2 hybrids. That is the kind of hybridization you have in an octahedral structure, "XY6". Each of the hybrid orbitals on the As atom is forming a sigma bond with the half filled p orbital on an F atom.
Wednesday, September 30, 2009 at 6:38pm by GK

Why does the He atom have a smaller radius than th
Think about the number of shells and the positive charge on the outside electrons.
Tuesday, August 17, 2010 at 5:23pm by DrBob222

Chemistry
Ok an atom loses an electron becomes positive-atom gainin electron becomes negative? Is that correct? thats w/ 1 electron in outer shell of one atom and the other atom receiving an electron to fill its outer shell
Tuesday, January 18, 2011 at 4:17pm by Brenda

Physics
In the hydrogen atom the radius of orbit B is sixteen times greater than the radius of orbit A. The total energy of the electron in orbit A is -0.378 eV. What is the total energy of the electron in orbit B?
Thursday, April 5, 2012 at 10:54pm by DCM

physics
In a hydrogen atom, if the radius of the orbit of the electron is doubled, then its energy will ... a)Decrease by a factor of 2 b)Remain the same c)Increase by a factor of 2 d)Actually, it is not possible for the radius of the orbit to double e)Increase or decrease by a ...
Sunday, April 4, 2010 at 5:59pm by jude

chemistry
I need help on a few of these. A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of potassium - 39? C. How many electrons are in one neutral atom of V - 51? D. What is the symbol for the element that has 78 protons? E. What is the ...
Thursday, April 14, 2011 at 7:06pm by mary

general chemistry
the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^-23 grams what is the density
Wednesday, February 6, 2013 at 2:56am by melissa

Chemistry-atoms
A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of potassium - 39? C. How many electrons are in one neutral atom of V - 51? D. What is the symbol for the element that has 78 protons? E. What is the symbol for the neutral atom that has...
Thursday, April 14, 2011 at 7:43pm by Anne

Physics
The allowed orbits for the electron around the nucleus of the hydrogen atom are explained by de Broglie as ... a. Quantized values for the total energy of the electron in the atom b. Quantized values for the angular momentum of the electron in the atom c. Standing waves for ...
Sunday, April 4, 2010 at 7:19am by Sandra

Physics
A helium-4 atom falls from a height h into a tank of gaseous helium atoms at 300 K. What is h in meters if the temperature of the helium atoms remains at 300 K after the falling atom enters the tank? Details and assumptions The acceleration of gravity is −9.8 m/s2. ...
Tuesday, April 2, 2013 at 8:59am by Crow

Chemistry
2PbCrO4 + HCl + 2FeSO4 ----> PbCl2 + Cr2 (SO4)3 + H2O + Fe2(SO4)3 In the above equation, I have adjusted two of the coefficients. Now, just go through and balanced the oxidation/reduction part. Keep the number of electrons equal. Cr changes from +6 for each atom on the ...
Tuesday, March 10, 2009 at 7:45pm by DrBob222

chemistry
It's a molecule. It consists of three atoms; i.e., 1 atom of C and 2 atoms of oxygen. A single atom would not have a formula of two elements attached to one another. For example, Na is a single atom. Na2O is a compound.
Tuesday, October 12, 2010 at 4:20pm by DrBob222

Science-Periodic Table
whats the connection/relationship between the # of protons in the nucleus of an atom & and atomic # of the element? The atomic number tells you the number of protons in the nucleus of the atom. The atomic number is the number of protons in the nucleus of an atom. The ...
Thursday, April 8, 2010 at 8:18pm by Sara

11th grade
convert 4 × 10−26 kg to grams by multiplying by 1000 (9.5 g of pure uranium)(1 atom/___g uranium atom) notice the grams cancel out and all you're left is the unit atom
Thursday, September 30, 2010 at 9:13pm by TutorCat

chemistry help
Determine the number of moles of each specified atom or ion in the given samples of the following compunds.( Hint: the formula tells you how many atoms or ions are in each molecule of formula unit.) a. O atom in 3.161x10^21 molecules of CO2 b. C atom in 3.161x10^21 molecules ...
Sunday, March 8, 2009 at 7:07pm by jaz

CHEMISTRY
PLEASE HELP I REALLY DO NOT UNDERSTAND THIS YOU DONT REALLY HAVE TO ANSWER THE QUESTIONS BUT AT LEAST JSUT A LITTLE HINT THATS ALL PLEASE AND I HAVE A QUIZ ON THIS TOMORROW MY TEACHER REALLY CANNOT TEACH 1) what flaws exsit in Dalton's model of the atom? 2) what flaws ...
Wednesday, November 14, 2007 at 9:12pm by Anonymous

math
I assume this is calculus class. Volume= PI*radius^2*h h= volume/(PI*radius^2) Surface=PI*radius^2*2 + PI*radius*height Surface= PI*radius^2 * 2 + PI*radius*volume/(PI*radius^2) Take the derivative of surface with respect to radius, set it to zero, and solve for radius.
Monday, February 4, 2008 at 8:03pm by bobpursley

chemistry
Can you not find this in your text or in your notes? An ionic bond is formed when electrons are transferred from one atom to another making the atom that lost electrons positively charged and the atom that gained electrons negatively charged.
Monday, February 8, 2010 at 7:29pm by DrBob222

chemistry
Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom? The face-centered gold crystal has an edge length of 407 pm. Based on the unit cell, calculate the density of gold. Type of atom Fraction in...
Monday, November 24, 2008 at 3:15pm by ea

Science
It was I that gave you the last response. Please go back and look at what I wrote. You are confusing yourself. Your question was, "How are valence electrons involved in the formation of a covalent bond?" My response was that they (the electrons) were shared with ...
Sunday, January 13, 2008 at 11:19pm by DrBob222

physics
The radius of a merry-go-round is 7 meters, and it takes 12 seconds to make a complete revolution. What is the speed of an atom on the outer rim?
Wednesday, October 3, 2012 at 2:41pm by Brittney

Physics
A triply ionized beryllium atom (Be3+) has only one electron in orbit about the nucleus. What is the radius of the ion when it is in the n = 9 excited state?
Friday, April 6, 2012 at 10:49am by DCM

physics
In a classic model, the electron of a hydrogen atom circles the proton at a radius of 0.052910−9m when it is in the n=1 state. What is its electric potential energy?
Friday, November 5, 2010 at 5:51pm by Maree

chemistry
1state relative mass and charge of an electron 2 an atom of an element X may be written as 4X^9 (a)What does the figure 9 indicate? (b)what is the number of protons in an atom X? (c)what is the number of electrons in an atoms X? (d)what does the number 4 indicate? 3 describe ...
Friday, May 4, 2012 at 4:13am by pooja

Science
Which atom or ion would you expect to have the smallest radius? Ne F- Na+ Ne-
Saturday, March 2, 2013 at 1:24pm by Akhil

chemistry
Which atom or ion would you expect to have the smallest radius? Ne F- Na+ Ne-
Monday, February 25, 2013 at 9:59am by adex

CHEM
Although we often write HClO as the formula for hypochlorous acid (I know I do that), I agree with xX_Supaman_xX that HOCl is the proper way with O being the central atom. A rule to help with this is worth remembering. USUALLY, the least electronegative element (in this case O...
Saturday, November 10, 2007 at 12:47am by DrBob222

science
A uranium and iron atom reside a distance R = 28.70 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. Calculate the distance r from the uranium atom necessary for an electron to reside in equilibrium. Ignore the insignificant gravitational ...
Tuesday, February 19, 2013 at 10:11pm by Kels

math
A can of apple juice has a height of 13 centimeters and a radius of 3 centimeters.How much material is needed to make the can
Wednesday, May 30, 2012 at 12:19pm by atom

Physics
In a hydrogen atom, if the radius of the orbit of the electron is doubled, then its energy will ... >> Increase by a factor of 2??
Sunday, April 4, 2010 at 10:46am by Kat

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