Question 1

An element that has the valence electron configuration 6s26p6 belongs to which period and group?

Accepted Answer

A) period 6;group 6A 
B) period 6;group 8A 
C) period 7;group 6A 
D) period 7;group 8A 
A) period 6;group 6A 
B) period 6;group 8A 
C) period 7;group 6A 
D) period 7;group 8A

Question 2

How many valence electrons does an atom of Ti possess?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
E) 0 
A) 2 
B) 4 
C) 6 
D) 8 
E) 0

Question 3

Define ionization energy.

Accepted Answer

The energy required

Question 4

Match the following.
-number of unpaired electrons in Zn2+

Accepted Answer

A) 0 
B) 2 
C) electrons in the outermost shell 
D) 1 
E) electrons in completed shells 
A) 0 
B) 2 
C) electrons in the outermost shell 
D) 1 
E) electrons in completed shells

Question 5

Which ionization process requires the most energy?

Accepted Answer

A) W(g)→ W+(g)+ e- 
B) W+(g)→ W2+(g)+ e- 
C) W2+(g)→ W3+(g)+ e- 
D) W3+(g)→ W4+(g)+ e- 
A) W(g)→ W+(g)+ e- 
B) W+(g)→ W2+(g)+ e- 
C) W2+(g)→ W3+(g)+ e- 
D) W3+(g)→ W4+(g)+ e-

Question 6

The complete electron configuration of silicon,element 14,is ________.

Accepted Answer

A) 1s2 2s2 2p6 3s2 3p2 
B) 1s2 2s2 2p10 
C) 1s4 2s4 2p6  
D) 1s4 1p6 2s4 
E) 1s6 2s6 2p2  
A) 1s2 2s2 2p6 3s2 3p2 
B) 1s2 2s2 2p10 
C) 1s4 2s4 2p6  
D) 1s4 1p6 2s4 
E) 1s6 2s6 2p2

Question 7

Match the following.
-core electrons

Accepted Answer

A) 0 
B) 2 
C) electrons in the outermost shell 
D) 1 
E) electrons in completed shells 
A) 0 
B) 2 
C) electrons in the outermost shell 
D) 1 
E) electrons in completed shells

Question 8

The condensed electron configuration of chlorine,element 17,is ________.

Accepted Answer

A) [Ne] 3s3 
B) [Ar] 3s2 3p1 
C) [Ne] 3s2 3p5 
D) [He] 2s4 2p9 
E) [He] 3s3  
A) [Ne] 3s3 
B) [Ar] 3s2 3p1 
C) [Ne] 3s2 3p5 
D) [He] 2s4 2p9 
E) [He] 3s3

Question 9

Which of the following statements is true?

Accepted Answer

A) An orbital that penetrates into the region occupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
B) An orbital that penetrates into the region occupied by core electrons is more shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
C) It is possible for two electrons in the same atom to have identical values for all four quantum numbers. 
D) Two electrons in the same orbital can have the same spin. 
E) None of the above are true. 
A) An orbital that penetrates into the region occupied by core electrons is less shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
B) An orbital that penetrates into the region occupied by core electrons is more shielded from nuclear charge than an orbital that does not penetrate and therefore has a lower energy. 
C) It is possible for two electrons in the same atom to have identical values for all four quantum numbers. 
D) Two electrons in the same orbital can have the same spin. 
E) None of the above are true.

Question 10

How many valence electrons does an atom of C have?

Accepted Answer

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

Question 11

Place the following in order of decreasing radius.
Te2⁻ F⁻ O2⁻

Accepted Answer

A) F⁻ > O2⁻ > Te2⁻ 
B) F⁻ > Te2⁻ > O2⁻ 
C) Te2⁻ > O2⁻ > F⁻ 
D) Te2⁻ > F⁻ > O2⁻ 
E) O2⁻ > F⁻ > Te2⁻ 
A) F⁻ > O2⁻ > Te2⁻ 
B) F⁻ > Te2⁻ > O2⁻ 
C) Te2⁻ > O2⁻ > F⁻ 
D) Te2⁻ > F⁻ > O2⁻ 
E) O2⁻ > F⁻ > Te2⁻

Question 12

Give the ground state electron configuration for Se2⁻.

Accepted Answer

A) [Ar] 4s2 3d10 4p4 
B) [Ar] 4s2 3d10 4p2 
C) [Ar] 4s2 4p6 
D) [Ar] 4s2 3d10 4p6 
E) [Ar] 4s2 3d8 4p6 
A) [Ar] 4s2 3d10 4p4 
B) [Ar] 4s2 3d10 4p2 
C) [Ar] 4s2 4p6 
D) [Ar] 4s2 3d10 4p6 
E) [Ar] 4s2 3d8 4p6

Question 13

Choose the ground state electron configuration for Zn2+.

Accepted Answer

A) [Ar] 4s2 3d8 
B) [Ar] 3d10 
C) [Ar] 4s2 3d6 
D) [Ar] 
E) [Ar] 3d8 
A) [Ar] 4s2 3d8 
B) [Ar] 3d10 
C) [Ar] 4s2 3d6 
D) [Ar] 
E) [Ar] 3d8

Question 14

Identify the element that has a ground state electronic configuration of [Ar] 4s2 3d10 4p1.

Accepted Answer

A) Al 
B) In 
C) Ga 
D) B 
A) Al 
B) In 
C) Ga 
D) B

Question 15

Give the ground state electron configuration for Se.

Accepted Answer

A) [Ar] 4s2 3d10 4p4 
B) [Ar] 4s2 4d10 4p4 
C) [Ar] 4s2 3d10 4p6 
D) [Ar] 4s2 3d10 
E) [Ar] 3d10 4p4 
A) [Ar] 4s2 3d10 4p4 
B) [Ar] 4s2 4d10 4p4 
C) [Ar] 4s2 3d10 4p6 
D) [Ar] 4s2 3d10 
E) [Ar] 3d10 4p4

Question 16

Of the following,which element has the highest first ionization energy?

Accepted Answer

A) beryllium 
B) boron 
C) carbon 
D) lithium 
A) beryllium 
B) boron 
C) carbon 
D) lithium

Question 17

Which of the following represents the change in electronic configuration that is associated with the first ionization energy of strontium?

Accepted Answer

A) [Kr]5s15p1 → [Kr]5s1 + e- 
B) [Kr]5s2 → [Kr]5s15p1 
C) [Kr]5s2 → [Kr]5s1 + e- 
D) [Kr]5s2 + e- → [Kr]5s25p1 
A) [Kr]5s15p1 → [Kr]5s1 + e- 
B) [Kr]5s2 → [Kr]5s15p1 
C) [Kr]5s2 → [Kr]5s1 + e- 
D) [Kr]5s2 + e- → [Kr]5s25p1

Question 18

Which reaction below represents the first ionization of O?

Accepted Answer

A) O⁺(g)+ e⁻ → O(g) 
B) O(g)+ e⁻ → O⁻(g) 
C) O⁻(g)→ O(g)+ e⁻ 
D) O(g)→ O⁺(g)+ e⁻ 
E) O⁻(g)+ e⁻ → O2⁻(g) 
A) O⁺(g)+ e⁻ → O(g) 
B) O(g)+ e⁻ → O⁻(g) 
C) O⁻(g)→ O(g)+ e⁻ 
D) O(g)→ O⁺(g)+ e⁻ 
E) O⁻(g)+ e⁻ → O2⁻(g)

Question 19

Choose the paramagnetic species from below.

Accepted Answer

A) Ca 
B) O2⁻ 
C) Cd2⁺ 
D) Zn 
E) Nb3⁺ 
A) Ca 
B) O2⁻ 
C) Cd2⁺ 
D) Zn 
E) Nb3⁺

Question 20

Identify the element that has a ground state electronic configuration of [Kr] 5s2 4d5.

Accepted Answer

A) Tc 
B) Mn 
C) Nb 
D) Ru 
A) Tc 
B) Mn 
C) Nb 
D) Ru

An element that has the valence electron configuration 6s²6p⁶ belongs to which period and group?

How many valence electrons does an atom of Ti possess?

Define ionization energy.

Match the following. -number of unpaired electrons in Zn²⁺

Which ionization process requires the most energy?

The complete electron configuration of silicon,element 14,is ________.

Match the following. -core electrons

The condensed electron configuration of chlorine,element 17,is ________.

Which of the following statements is true?

How many valence electrons does an atom of C have?

Place the following in order of decreasing radius. Te^2⁻ F^⁻ O^2⁻

Give the ground state electron configuration for Se^2⁻.

Choose the ground state electron configuration for Zn²⁺.

Identify the element that has a ground state electronic configuration of [Ar] 4s²3d¹⁰4p¹.

Give the ground state electron configuration for Se.

Of the following,which element has the highest first ionization energy?

Which of the following represents the change in electronic configuration that is associated with the first ionization energy of strontium?

Which reaction below represents the first ionization of O?

Choose the paramagnetic species from below.

Identify the element that has a ground state electronic configuration of [Kr] 5s²4d⁵.

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Exam 8: Periodic Properties of the Elements

An element that has the valence electron configuration 6s26p6 belongs to which period and group?

How many valence electrons does an atom of Ti possess?

Define ionization energy.

Match the following. -number of unpaired electrons in Zn2+

Which ionization process requires the most energy?

The complete electron configuration of silicon,element 14,is ________.

Match the following. -core electrons

The condensed electron configuration of chlorine,element 17,is ________.

Which of the following statements is true?

How many valence electrons does an atom of C have?

Place the following in order of decreasing radius. Te2⁻ F⁻ O2⁻

Give the ground state electron configuration for Se2⁻.

Choose the ground state electron configuration for Zn2+.

Identify the element that has a ground state electronic configuration of [Ar] 4s2 3d10 4p1.

Give the ground state electron configuration for Se.

Of the following,which element has the highest first ionization energy?

Which of the following represents the change in electronic configuration that is associated with the first ionization energy of strontium?

Which reaction below represents the first ionization of O?

Choose the paramagnetic species from below.

Identify the element that has a ground state electronic configuration of [Kr] 5s2 4d5.

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

An element that has the valence electron configuration 6s²6p⁶ belongs to which period and group?

Match the following. -number of unpaired electrons in Zn²⁺

Place the following in order of decreasing radius. Te^2⁻ F^⁻ O^2⁻

Give the ground state electron configuration for Se^2⁻.

Choose the ground state electron configuration for Zn²⁺.

Identify the element that has a ground state electronic configuration of [Ar] 4s²3d¹⁰4p¹.

Identify the element that has a ground state electronic configuration of [Kr] 5s²4d⁵.