Questions LLC
Login
or
Sign Up
Ask a New Question
Atomic Structure
Page 10
Questions (4,407)
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
3,039 views
A silver ring contains 0.0134 mmol Ag. How many silver atoms does it contain?
4 answers
asked by
jane
5,362 views
how many atoms are present in 80.0 mol of zirconium?
5 answers
asked by
hokoslavia
4,177 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
2,140 views
How many moles of aluminum do 5.9×1024 aluminum atoms represent?
4 answers
asked by
alex
1,620 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
2,369 views
The total number of atoms in 0.111 mol of FeCO3(PH3)2...?
4 answers
asked by
Linda
2,471 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
2,081 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!!!
552 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
2,086 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★★★
2,029 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
9,287 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
3,199 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
1,885 views
How many unpaired electrons are in the electron structure of 24 Cr, [Ar]4s1 3d5
7 answers
asked by
dody
2,557 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
2,098 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
2,166 views
Is the relative Formula mass for Aluminium Oxide simply :
Al = 27 , O = 16 27+16 = 43?
5 answers
asked by
Disney man
2,105 views
How many grams do 5.1×1023 atoms of argon
weigh?
4 answers
asked by
an
567 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
3,443 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
3,532 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
1,636 views
What is the nuclear symbol for the radioactive isotope of copper with a mass number of 60?
4 answers
asked by
cha-che
5,253 views
What quantum numbers specify these subshells?
2s n= l= 3p n= t= 6d n= l=
5 answers
asked by
Bill
7,481 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
949 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
7,418 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
1,798 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
5,201 views
What is the effective nuclear charge on the valence electrons of silicon?
4 answers
asked by
Anonymous
1,312 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
4,340 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
1,255 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
5,905 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
2,443 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
2,697 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
1,760 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
2,622 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
1,172 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
2,680 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
3,914 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
4,944 views
Bromine consists of two major isotopes with the following percent abundances and atomic masses: 79Br (50.54% and 78.918 amu) and
4 answers
asked by
perry
1,457 views
Calculate the magnitude 𝐿 of the orbital angular momentum, in multiples of ℏ, of an electron in the atomic orbital 3𝑑.
4 answers
asked by
monica
455 views
Explain why O2- ion has a larger radius than oxygen atom
4 answers
asked by
Litia
1,873 views
Which argument best explains the charge of an atomic nucleus?
An atomic nucleus is positively charged because it is composed of
5 answers
asked by
Serenity Russell
3,660 views
Cobalt has a mass number of 59 and an atomic number of 27. A student wants to create a model of a cobalt atom. Which statement
5 answers
asked by
Plzz Help Jiskha Keeps updating and resetting!
3,260 views
The radius of a magnesium atom is 160 pm & its mass is 4.04 X 10^-23 g. What is the density of the atom in grams per cubic
5 answers
asked by
Karen
2,656 views
A hypothetical element has two main isotopes
with mass numbers of 71 and 74. If 80.00% of the isotopes have a mass number of 71
4 answers
asked by
theo
2,089 views
Why are the atomic masses of elements usually decimal numbers?
4 answers
asked by
Mads
2,253 views
What is the mass of the carbon atoms in one mole of c3h8
4 answers
asked by
Anonymous
1,246 views
Hello
What is the wavelength (in nm) of the line in the spectrum of the hydrogen atom that arises from the transition of the
4 answers
asked by
Anonymous
2,038 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (53)
Atomic Models
Atomic Physics
Atomic Theory
Atoms
Atoms and Element
Atoms and Elements
Basic Concepts
Chemical Bonding
Chemistry
Chemistry or Physics
Chemistry or Physics ? (Depends on the context)
Chemistry or Science
Electromagnetism
Elements
elements and compounds
Elements/Atoms
Energy
Materials Science
Mathematics and Physics
Matter
Matter and Materials
Matter Interactions
Molecules
Nuclear Chemistry
Nuclear Physics
Organic Chemistry
Particle Physics
Periodic table
Periodic Table of Elements
Physical Chemistry
Physical Science
Physical Sciences
Physics
Physics (or could be Quantum Mechanics)
Physics and Chemistry
Physics or Chemistry
Physics or Chemistry (depending on the focus of the website)
Physics or Science
Physics/Chemistry
Physics/Mathematics
Properties of Elements
Quantum Mechanics
Quantum Physics
Science
Science (or Chemistry)
Science and Chemistry
Science and Physics
Science and Technology
Science Education
Science or Physics
Science/Chemistry
Science/Physics
Types of Solids