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Atomic Structure
Page 10
Questions (4,297)
Explain the first ionization energy of lithium is greater than that of sodium
5 answers
asked by
donald
4,213 views
The solutions of both Ag+ and Zn2+ ions have no color. What does this suggest about their electron configurations?
5 answers
asked by
Jessoca
3,554 views
It takes 476 kJ to remove 1 mole of electrons from the atoms at the surface of a solid metal. how much energy (in kJ) does it
4 answers
asked by
Anonymous
2,559 views
A selenium atom (Se) would form its most
stable ion by the 1. loss of 2 electrons. 2. gain of 1 electron. 3. loss of 1 electron.
7 answers
asked by
Randy
12,949 views
Why is there a decrease in electron affinity going from lithium to sodium?
A. There is a stronger nuclear charge, with no
5 answers
asked by
Morgan
2,753 views
On another planet, the isotopes of titanium have the following natural abundances.
Isotope 46Ti Abundance 70.900% Mass(amu)
11 answers
asked by
Anon
13,822 views
One mole of titanium (6 1023 atoms) has a mass of 48 grams, and its density is 4.54 grams per cubic centimeter, so the
4 answers
asked by
hannah
4,541 views
An atom contains a total of 29 electrons. When the atom is in the ground state how many principle energy levels will contain
5 answers
asked by
danny123
1,595 views
calculate the number of protons, neutrons, and electrons in the sample of scandium that you weighed at 7.9 mass weight if it is
4 answers
asked by
GKMB
3,892 views
For an atom of sulfur, which electron would require the least amount of energy to remove from the atom?
A. 3s2 B. 1s1 C. 3p1 D.
5 answers
asked by
Morgan
2,278 views
It is found that 1.431 g of element X contains 7.509 × 1021 atoms. The atomic mass of X is?
5 answers
asked by
MIKE
2,269 views
Isotopes (select one or more):
are chemicals that react only with protons. for an element have the same chemical properties. are
4 answers
asked by
ray
3,026 views
A silver ring contains 0.0134 mmol Ag. How many silver atoms does it contain?
4 answers
asked by
jane
5,343 views
how many atoms are present in 80.0 mol of zirconium?
5 answers
asked by
hokoslavia
4,168 views
The ionic radii of Na+ (atomic weight 22.99) and Cl- (atomic weight 35.45) are 1.0 and 1.8 Angstrom, respectively. Treating the
4 answers
asked by
john
2,123 views
How many moles of aluminum do 5.9×1024 aluminum atoms represent?
4 answers
asked by
alex
1,614 views
How much energy, in kilojoules per mole, is released when an electron makes a transition from n=5 to n=2 in an hydrogen atom? Is
9 answers
asked by
masre man
2,363 views
The total number of atoms in 0.111 mol of FeCO3(PH3)2...?
4 answers
asked by
Linda
2,462 views
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
5 answers
asked by
andrew
2,067 views
The diameters of four different types of atoms are given below.
Atom A: 1.35 * 10^-7 mm; Atom B: 1.80 * 10^-7 mm; Atom C: 6.00 *
4 answers
asked by
Please HELP!!!
545 views
How does Avogadro’s number relate to the atomic mass and moles of an element?
1. Avogadro’s number can be used to convert the
4 answers
asked by
bella
2,076 views
Supply the missing quantum number or sub level name.
n. l. ml. name (a). ? ? 0. 4p (b). 2. 1. 0. ? (c). 3. 2. -2. ? (d). ? ? ? 2s
5 answers
asked by
MR TRUMP★★★
2,021 views
It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy for an
5 answers
asked by
Jeimmy Vinueza
9,279 views
The atomic number of an electrically neutral atom is equal to the number of:
Choose all that apply. Neutrons Electrons Protons I
6 answers
asked by
Kyle
3,192 views
What is the formula weight of Li2CO3?
73.891 amu b. What is the mass of 1.30 x 10-4 mol of Li2CO3? 9.61E-3 c. How many moles of
4 answers
asked by
krystal
1,875 views
How many unpaired electrons are in the electron structure of 24 Cr, [Ar]4s1 3d5
7 answers
asked by
dody
2,545 views
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm . It has a face-centered cubic lattice. Find
5 answers
asked by
HELp
2,080 views
How many oxygen atoms are in 1.90g og quartz (SiO2)?
ok so 1.90g SiO2(1mol/60.0843g SiO2)(2 O mols/1 mol SiO2)
4 answers
asked by
Natash
2,159 views
Is the relative Formula mass for Aluminium Oxide simply :
Al = 27 , O = 16 27+16 = 43?
5 answers
asked by
Disney man
2,093 views
How many grams do 5.1×1023 atoms of argon
weigh?
4 answers
asked by
an
556 views
Naturally occurring silicon exists as 3 isotopes: 28Si, 29Si, and 30Si, whose atomic masses are 27.9769, 28.9865, and 29.9838,
4 answers
asked by
Rinad
3,432 views
Helpful steps?
Calculate the predicted atomic radius for potassium, K, given the atomic radius of rubidium, Rb, (0.247 nm) and
4 answers
asked by
Ally
3,523 views
On the ionization energy vs. atomic number graph, the peaks, which are Noble Gases, gradually get smaller. Which statement below
4 answers
asked by
Sarah PLEASE HELP MEEEEE
1,628 views
What is the nuclear symbol for the radioactive isotope of copper with a mass number of 60?
4 answers
asked by
cha-che
5,246 views
What quantum numbers specify these subshells?
2s n= l= 3p n= t= 6d n= l=
5 answers
asked by
Bill
7,476 views
If the molar mass of monatomic deuterium (D) is 2.0141 g, then what is the density of diatomic deuterium (D2) gas at 25.0°C and
4 answers
asked by
Ginger
944 views
what is the mass in grams?
a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25
4 answers
asked by
john
7,408 views
What is the difference between the ionization energy of inner-shell electrons and the ionization energy of outer-shell
4 answers
asked by
Morgan
1,787 views
What atomic or hybrid orbitals make up the sigma bond between As and F in hexafluoroarsenate ion, AsF6- ?
orbital on AS:? orbital
5 answers
asked by
Jen
5,196 views
Which of the following orbitals designations are not possible? explain why. A: 8s, 2d, 7p, 4f, 1f. B: 3f, 6p, 3d,1p, 8d.
4 answers
asked by
Erickson Warea
4,327 views
Using a periodic table, determine the number of electrons held in energy levels 1-3 of each atom.
B----2 in level 1--3 in level
4 answers
asked by
kr
1,244 views
How do i calculate the effective nuclear charge of a 3d electron of copper?
what is the zeff. for a electron in the 3d orbital of
10 answers
asked by
mandy
5,895 views
The radius of a single atom of a generic element X is 179 picometers (pm) and a crystal of X has a unit cell that is
4 answers
asked by
JAmes
2,438 views
The density of palladium (Pd) is 12.0 g/mL and the cell volume is 5.89 ✕ 10^−23 mL. Determine the number of atoms in the
5 answers
asked by
James
2,690 views
In part B of my question, I was asked calculate the number of atoms in 0.462 mol of 13C (mass number of this Carbon is 13).
I
4 answers
asked by
rose
1,754 views
name each isotope, and write it in symbolic notation
atomic number 26; mass number 56 atomic number 29; mass number 64 atomic
5 answers
asked by
monique n
2,615 views
Which of the following set of quantum numbers (ordered n, ℓ, mℓ, ms) are possible for an electron in an atom?
Check all that
4 answers
asked by
Chelsey
1,164 views
Write the element symbol and charge for this monatomic ion:
Consider a monatomic ion that has the electron configuration of
3 answers
asked by
Aaron
2,673 views
a sample of phosphorous has 0.5 moles of P4 molecules
1]how many P4 molecules are there? 2]how many P atoms are there? 3]how many
4 answers
asked by
Anonymous
3,901 views
A helium balloon contains 0.50 g of helium.
Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it
4 answers
asked by
Anonymous
4,936 views
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