Question 1

How many unpaired electrons does a ground-state atom of sulfur have?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 2

Write the ground state electron configuration for the selenium atom.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 3

The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 1870 and 102.5 nm. What is the quantum number of the initial excited energy level from which the electron falls?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 6 
E) 8 
A) 2 
B) 3 
C) 4 
D) 6 
E) 8

Question 4

Write the ground state electron configuration for Cr.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 5

Write the ground state electron configuration for the phosphorus atom.

Accepted Answer

The answer of Write the ground state electron configuration for...

Question 6

The electron configuration of a ground-state Co atom is

Accepted Answer

A) [Ar]4s23d7 
B) 1s22s22p63s23d9 
C) [Ne]3s23d7 
D) [Ar]4s13d5 
E) [Ar]4s24d7 
A) [Ar]4s23d7 
B) 1s22s22p63s23d9 
C) [Ne]3s23d7 
D) [Ar]4s13d5 
E) [Ar]4s24d7

Question 7

Calculate the energy of a photon of light with a wavelength of 360 nm.

Accepted Answer

5.5 * 10<s

Question 8

Which of the following is the electron configuration of an excited state of an oxygen atom?

Accepted Answer

A) 1s22s22p4 
B) 1s22s22p5 
C) 1s22s22p33s1 
D) 1s22s22p6 
E) 1s22s22p3 
A) 1s22s22p4 
B) 1s22s22p5 
C) 1s22s22p33s1 
D) 1s22s22p6 
E) 1s22s22p3

Question 9

Which element has the following ground-state electron configuration? [Ar]4s23d104p5

Accepted Answer

A) aresnic 
B) bromine 
C) iodine 
D) selenium 
E) tellerium 
A) aresnic 
B) bromine 
C) iodine 
D) selenium 
E) tellerium

Question 10

Which of the following is the electron configuration of an excited state of a copper atom?

Accepted Answer

A) [Ar]4s23d9 
B) [Ar]4s13d10 
C) [Ar]4s13d8 
D) [Ar]4s23d8 
E) [Ar]4s03d10 
A) [Ar]4s23d9 
B) [Ar]4s13d10 
C) [Ar]4s13d8 
D) [Ar]4s23d8 
E) [Ar]4s03d10

Question 11

What is the wavelength, in meters, of an alpha particle with a kinetic energy of 8.0 * 10-13 J.[mass of an alpha particle = 4.00150 amu; 1 amu = 1.67 *10-27 kg]

Accepted Answer

6.4 * 10<s

Question 12

A possible set of quantum numbers for the last electron added to complete an atom of gallium (Ga)in its ground state is

Accepted Answer

The answer of A possible set of quantum numbers for...

Question 13

Which element has the following ground-state electron configuration? 1s22s22p63s2

Accepted Answer

A) Na 
B) Mg 
C) Al 
D) Si 
E) Ne 
A) Na 
B) Mg 
C) Al 
D) Si 
E) Ne

Question 14

The colors of the visible spectrum are blue, green, orange, red, violet, and yellow.Of these colors, ______ has the least energy.

Accepted Answer

The answer of The colors of the visible spectrum are...

Question 15

What is the maximum number of electrons in an atom that can have the following set of quantum numbers? n = 4 l = 3 ml = -2 ms = +1/2

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 6 
E) 10 
A) 0 
B) 1 
C) 2 
D) 6 
E) 10

Question 16

What is the total number of electrons possible in the 6s orbital?

Accepted Answer

The answer of What is the total number of electrons...

Question 17

The orbital diagram for a ground-state nitrogen atom is

Accepted Answer

The answer of The orbital diagram for a ground-state nitrogen...

Question 18

The Bohr model of the hydrogen atom found its greatest support in experimental work on the photoelectric effect.

Accepted Answer

A) True 
 B)False

Question 19

With regard to electron behavior, what happens when light is absorbed or emitted by an atom?

Accepted Answer

The electr

Question 20

Each shell (principal energy level)of quantum number n contains n subshells

Accepted Answer

A) True 
 B)False

Exam 7: Quantum Theory and the Electronic Structure of Atoms

How many unpaired electrons does a ground-state atom of sulfur have?

Write the ground state electron configuration for the selenium atom.

The electron in a hydrogen atom falls from an excited energy level to the ground state in two steps, causing the emission of photons with wavelengths of 1870 and 102.5 nm. What is the quantum number of the initial excited energy level from which the electron falls?

Write the ground state electron configuration for Cr.

Write the ground state electron configuration for the phosphorus atom.

The electron configuration of a ground-state Co atom is

Calculate the energy of a photon of light with a wavelength of 360 nm.

Which of the following is the electron configuration of an excited state of an oxygen atom?

Which element has the following ground-state electron configuration? [Ar]4s23d104p5

Which of the following is the electron configuration of an excited state of a copper atom?

What is the wavelength, in meters, of an alpha particle with a kinetic energy of 8.0 * 10-13 J.[mass of an alpha particle = 4.00150 amu; 1 amu = 1.67 *10-27 kg]

A possible set of quantum numbers for the last electron added to complete an atom of gallium (Ga)in its ground state is

Which element has the following ground-state electron configuration? 1s22s22p63s2

The colors of the visible spectrum are blue, green, orange, red, violet, and yellow.Of these colors, ______ has the least energy.

What is the maximum number of electrons in an atom that can have the following set of quantum numbers? n = 4 l = 3 ml = -2 ms = +1/2

What is the total number of electrons possible in the 6s orbital?

The orbital diagram for a ground-state nitrogen atom is

The Bohr model of the hydrogen atom found its greatest support in experimental work on the photoelectric effect.

With regard to electron behavior, what happens when light is absorbed or emitted by an atom?

Each shell (principal energy level)of quantum number n contains n subshells

Chemistry: The Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Which element has the following ground-state electron configuration? [Ar]4s²3d¹⁰4p⁵

What is the wavelength, in meters, of an alpha particle with a kinetic energy of 8.0 * 10^-13 J.[mass of an alpha particle = 4.00150 amu; 1 amu = 1.67 *10^-27 kg]

Which element has the following ground-state electron configuration? 1s²2s²2p⁶3s²

What is the maximum number of electrons in an atom that can have the following set of quantum numbers? n = 4 l = 3 m_l = -2 m_s = +1/2