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Atomic Structure
Page 9
Questions (4,346)
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
7,074 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
1,571 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
5,697 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
2,875 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
12,490 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
5,337 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
3,541 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
7,103 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
10,063 views
The average atomic mass of nitrogen is 14.01 u.
Nitrogen exists naturally as nitrogen-14 (mass = 14.00 u) and nitrogen-15 (mass =
5 answers
asked by
Selena
2,619 views
how many electrons are in 3.70 x 10^23 atoms of carbon 13?
5 answers
asked by
Emily
2,803 views
How many total atoms are in 0.630 g of P2O5?
4 answers
asked by
Anonymous
1,329 views
Electron Configuration for mo2+
5 answers
asked by
Esther Joseph
5,818 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
2,446 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
4,961 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
3,597 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
13,157 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
3,066 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
7,146 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
3,342 views
The observed general trend in ionization energies shows two slight discontinuities in each period. Examine the electron
4 answers
asked by
Tommy
2,630 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
5,687 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
5,362 views
Why does it take more energy to remove a electron from Al+ than from Al?
4 answers
asked by
AG
3,343 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
1,695 views
Determine the mass in grams of 2.56*10^24 atoms in Li
4 answers
asked by
Aundrea
1,698 views
How many atoms of silver are there in 2.639g of Ag2O?
4 answers
asked by
Anonymous
840 views
How would the dx2−y2 orbital in the n=5 shell compare to the dx2−y2 orbital in the n=3 subshell?
True or False 1.The contour
9 answers
asked by
Kristine
21,892 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
7,049 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
5,731 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
6,267 views
How many valence electrons does each of the following species contain?
BN = HF = OH[1-] = CN[1-] =
5 answers
asked by
IRA
1,757 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
3,262 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
3,603 views
Number of electron in As3+ ion?
4 answers
asked by
ayesha
2,708 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
1,413 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
3,082 views
How many electrons does hydrogen need in order to have a full shell of valence electrons?
5 answers
asked by
Adam
370 views
What is the set of quantum numbers for the last three electrons in an iodine atom?
4 answers
asked by
Oobleck plz help
1,948 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
4,020 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
4,878 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
401 views
The number of Pb atoms per unit cell
5 answers
asked by
Rony
2,814 views
Explain the first ionization energy of lithium is greater than that of sodium
5 answers
asked by
donald
4,215 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
3,558 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
2,563 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
12,951 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
2,759 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
13,826 views
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