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Atomic Structure
Page 9
Questions (4,297)
How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute.
This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am
5 answers
asked by
Monique
7,944 views
Which neutral atoms have the following electron configurations in either a ground state or excited state? Enter the name or
5 answers
asked by
Jordan
6,625 views
Given the shell model of the atom, suggest a possible reason that Lewis proposed a maximum of two electrons for hydrogen and a
5 answers
asked by
Anonymous
3,742 views
Determine which H atom transition(iinitital, nfinal) was responsible for the absorption of a photon with a frequency of 4.57 x
4 answers
asked by
Jiszka
2,450 views
A sample of propane(c3h8)has 3.84x10^24 H atoms.
a) how many carbon atoms does the sample contain? b) what is the total mass of
7 answers
asked by
Jessica
9,137 views
How many electrons and how many protons are in the ion Cr6+?
5 answers
asked by
Jenna
5,096 views
In which orbital does an electron in a phosphorus atom experience the greatest effective nuclear charge?
a. 1s b. 2s c. 2p d. 3s
7 answers
asked by
C.
10,943 views
The first principle energy level is called the:
A Principle one state B Ground state C Atomic state D Hund’s state B?
4 answers
asked by
Anonymous
2,762 views
Rank the following atoms in terms of decreasing atomic radius.
1. Na, N, O, Mg, F 2. F, O, N, Mg, Na 3. F, Mg, Na, O, N 4. Na,
5 answers
asked by
Bob
6,253 views
What is the symbol for an ion with 63 protons, 60 electrons, and 88 neutrons?
If an ion contains 50 protons, 68 neutrons, and 48
7 answers
asked by
Danny
7,072 views
The diameters of four different atoms are shown below.
Atom A: 6.35 x 10^-7 Atom B: 1.80 x 10^-6 Atom C: 2.00 x 10^-7 Atom D:
10 answers
asked by
doge master
1,566 views
Determine the maximum number of electrons that can have each of the following designations.
2f,1Py,2Pz,5dyz,6f
5 answers
asked by
Farha
5,693 views
I am having some chemistry problems.
3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10),
7 answers
asked by
Morgan
2,869 views
Bromine has two natural occurring isotopes (Br-79 and Br-81) and has an atomic mass of 79.904 amu. The mass of Br-81 is 80.9163
10 answers
asked by
Davis
12,488 views
the density of an unknown metal is 2.64 g/cm^3 and its atomic radius is 0.215 nm. It has a face-centered cubic lattice. What is
4 answers
asked by
ChemGeek
5,335 views
the mass number is used to calculate the number of-----------in one atom of an element. in order to calculate the number of
4 answers
asked by
jennifer
3,539 views
Element X has two natural isotopes:X-6 (6.015amu) and X-7 (7.016amu). calculate the atomic mass of element X given the abundance
7 answers
asked by
trisha
7,100 views
The electron from a hydrogen atom drops from an excited state into the ground state. When an electron drops into a lower-energy
10 answers
asked by
K
10,057 views
how many electrons are in 3.70 x 10^23 atoms of carbon 13?
5 answers
asked by
Emily
2,797 views
How many total atoms are in 0.630 g of P2O5?
4 answers
asked by
Anonymous
1,324 views
Electron Configuration for mo2+
5 answers
asked by
Esther Joseph
5,813 views
What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 8p^1?
Thank
4 answers
asked by
abby
2,443 views
Give the symbol of the element of lowest atomic number whose ground state has:
a) Four f electrons b) a completed d subshell c)
5 answers
asked by
Meg
4,958 views
I am confused on how to even start this problem...
A ground state H atom absorbs a photon of wavelength 94.91 nm, and its
4 answers
asked by
Candace
3,590 views
What mass of rhodium contains as many
atoms as there are zirconium atoms in 23 g of zirconium?
4 answers
asked by
carlee
1,832 views
a sample of glucose, c6h12o6 contains 2.03*10^21 atoms of carbon.
(a)how many atoms of hydrogen does it contain? (b)how many
7 answers
asked by
rose
13,153 views
What is the nuclear charge of an atom with a mass of 23 and an atomic number of 11?
(1) 11+ (2) 12+ (3) 23+ (4) 34+ How do you
4 answers
asked by
Anonymous
3,064 views
Magnesium has three stable isotopes: 24Mg, 25Mg, 26Mg. The relative abundance of 24Mg is 79%.
What are the relative abundances of
7 answers
asked by
Piper
7,141 views
Which statement describes the principal quantum number (n)?
A. The quantum number that indicates the subshell occupied by an
7 answers
asked by
Morgan
3,339 views
The energy levels of one-electron ions are given by the equation:
En=(-2.18*10^(-18)J)(Z^2/n^2) The series in the He spectrum
6 answers
asked by
Anonymous
5,680 views
Determine which ions have noble-gas configurations:
Cd2+ Ru3+ P3− As3− Ag+ Zr4+ Thanks for any help. (I tried As3- and Zr4+,
4 answers
asked by
G-Dogg
5,358 views
Why does it take more energy to remove a electron from Al+ than from Al?
4 answers
asked by
AG
3,342 views
Hi everyone, I'm having problems with effective nuclear charge. Regarding these problems.
Calculate Zeff for a valence electron
5 answers
asked by
Robert
1,691 views
Determine the mass in grams of 2.56*10^24 atoms in Li
4 answers
asked by
Aundrea
1,695 views
How many atoms of silver are there in 2.639g of Ag2O?
4 answers
asked by
Anonymous
840 views
In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13).
I
7 answers
asked by
Kevin
7,045 views
6. What is wrong with the following electron configurations for atoms in their ground states?
a) 1s^2 2s^2 3s^1 b) (Ne) 2s^2 2p^3
4 answers
asked by
tra
5,727 views
Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius of the platinum atom?
5 answers
asked by
Fred
6,266 views
How many valence electrons does each of the following species contain?
BN = HF = OH[1-] = CN[1-] =
5 answers
asked by
IRA
1,753 views
Suppose that a device is using a 5.00-mg sample of silicon that is doped with 1 × 10-5% (by mass) phosphorus. How many
5 answers
asked by
Angel
3,259 views
how many protons and nuetrons are contained in the nucleus of each of the following atoms? assuming each atom is uncharged, how
4 answers
asked by
Corey
3,600 views
Number of electron in As3+ ion?
4 answers
asked by
ayesha
2,706 views
Which is the more stable electron: that in a ground-state H atom or that in a
ground-state He+ ion? Explain your choice.
4 answers
asked by
ben10
1,412 views
A sodium atom when excited gives off two very specific wavelengths of visible light. What does this tell us about sodium?
A.
9 answers
asked by
Morgan
3,079 views
How many electrons does hydrogen need in order to have a full shell of valence electrons?
5 answers
asked by
Adam
367 views
What is the set of quantum numbers for the last three electrons in an iodine atom?
4 answers
asked by
Oobleck plz help
1,946 views
Calculate the number of carbon atoms in
0.75 L of acetone (CH3COCH3). (density = 1.3 g/mL and boiling point = 48.5 degrees
4 answers
asked by
Bob
4,016 views
Did I answer these correctly?
1. What is the total number of principal energy levels or shells in an atom with an atomic number
5 answers
asked by
timmy123
4,875 views
Given that the first and second electron affinities of sulfur are −0.332 aJ and +0.980 aJ, the ionic radii of Zn2+ and S2−
3 answers
asked by
Donovan
400 views
The number of Pb atoms per unit cell
5 answers
asked by
Rony
2,810 views
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