Question 1

The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 is

Accepted Answer

A)  Mg. 
B)  Ca. 
C)  Mn. 
D)  Ne. 
A)  Mg. 
B)  Ca. 
C)  Mn. 
D)  Ne.

Question 2

A horizontal row in the modern periodic table is called a

Accepted Answer

A)  period. 
B)  group. 
C)  branch. 
D)  valence. 
A)  period. 
B)  group. 
C)  branch. 
D)  valence.

Question 3

When an electron moves from the ground state to the excited state, it

Accepted Answer

A)  absorbs energy and moves closer to the nucleus. 
B)  absorbs energy and moves farther from the nucleus. 
C)  emits energy and moves closer to the nucleus. 
D)  emits energy and moves farther from the nucleus. 
A)  absorbs energy and moves closer to the nucleus. 
B)  absorbs energy and moves farther from the nucleus. 
C)  emits energy and moves closer to the nucleus. 
D)  emits energy and moves farther from the nucleus.

Question 4

Which of the following is NOT a characteristic of metals?

Accepted Answer

A)  Metals have a luster. 
B)  Metals are gases at room temperature. 
C)  Metals are good conductors of heat and electricity. 
D)  Metals are solids at room temperature. 
A)  Metals have a luster. 
B)  Metals are gases at room temperature. 
C)  Metals are good conductors of heat and electricity. 
D)  Metals are solids at room temperature.

Question 5

The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 3p5 is

Accepted Answer

A)  Ar. 
B)  Cl. 
C)  S. 
D)  Br. 
A)  Ar. 
B)  Cl. 
C)  S. 
D)  Br.

Question 6

Write the electron configuration for potassium.

Accepted Answer

Potassium (K) is the 19th element on the

Question 7

An orbital is a region in space in which there is a high probability of finding an electron.

Accepted Answer

A) True 
 B)False

Question 8

The application of electricity to chemical systems provided much of the experimental evidence for the existence of subatomic particles. With respect to the use of electricity in studying matter, which one of the following scientists would NOT be grouped with the others?

Accepted Answer

A)  Humphry Davy 
B)  Michael Faraday 
C)  J.J. Thomson 
D)  Ernest Rutherford 
A)  Humphry Davy 
B)  Michael Faraday 
C)  J.J. Thomson 
D)  Ernest Rutherford

Question 9

The isotope of hydrogen that contains two nucleons is

Accepted Answer

A)  deuterium. 
B)  dihydrogen. 
C)  hydrogen. 
D)  tritium. 
A)  deuterium. 
B)  dihydrogen. 
C)  hydrogen. 
D)  tritium.

Question 10

Which of the following elements will react most vigorously with sodium?

Accepted Answer

A)  bromine 
B)  chlorine 
C)  fluorine 
D)  iodine 
A)  bromine 
B)  chlorine 
C)  fluorine 
D)  iodine

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² is

A horizontal row in the modern periodic table is called a

When an electron moves from the ground state to the excited state, it

Which of the following is NOT a characteristic of metals?

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁵is

Write the electron configuration for potassium.

An orbital is a region in space in which there is a high probability of finding an electron.

The application of electricity to chemical systems provided much of the experimental evidence for the existence of subatomic particles. With respect to the use of electricity in studying matter, which one of the following scientists would NOT be grouped with the others?

The isotope of hydrogen that contains two nucleons is

Which of the following elements will react most vigorously with sodium?

Chemistry

Atoms

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Acids and Bases

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Energy

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters

Exam 3: Atomic Structure

The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 is

A horizontal row in the modern periodic table is called a

When an electron moves from the ground state to the excited state, it

Which of the following is NOT a characteristic of metals?

The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 3p5 is

Write the electron configuration for potassium.

An orbital is a region in space in which there is a high probability of finding an electron.

The application of electricity to chemical systems provided much of the experimental evidence for the existence of subatomic particles. With respect to the use of electricity in studying matter, which one of the following scientists would NOT be grouped with the others?

The isotope of hydrogen that contains two nucleons is

Which of the following elements will react most vigorously with sodium?

Chemistry

Atoms

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Acids and Bases

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Energy

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² is

The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁵is