Question 1

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 2

The condensed electron configuration of arsenic,element 33,is ________.

Accepted Answer

A) [Ar]3d104p3 
B) [Ar]3d104s24p3 
C) [Kr]4s43d10 
D) [Kr]4s24p3 
E) [Ar]4s24p3 
A) [Ar]3d104p3 
B) [Ar]3d104s24p3 
C) [Kr]4s43d10 
D) [Kr]4s24p3 
E) [Ar]4s24p3

Question 3

Use the periodic table to predict the most stable oxidation state for the following element: F

Accepted Answer

A) +1 
B) +2 
C) +3 
D) -1 
E) -2 
A) +1 
B) +2 
C) +3 
D) -1 
E) -2

Question 4

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

Accepted Answer

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

Question 5

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s14d7

Accepted Answer

A) Mo 
B) Tc 
C) Rh 
D) Ru 
E) Pd 
A) Mo 
B) Tc 
C) Rh 
D) Ru 
E) Pd

Question 6

How many electrons are in the outermost shell of the Ga3+ ion in its ground state?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 18 
A) 2 
B) 3 
C) 6 
D) 18

Question 7

An element that has the outer electron configuration 6s25d7 belongs to which period and group?

Accepted Answer

A) period 7; group 9 
B) period 6; group 7 
C) period 6; group 2 
D) period 6; group 9 
E) period 7; group 7 
A) period 7; group 9 
B) period 6; group 7 
C) period 6; group 2 
D) period 6; group 9 
E) period 7; group 7

Question 8

Place the following ions in order of increasing radius. 
Br-$\quad$ Na+ $\quad$Rb+

Accepted Answer

A) Br- + + 
B) N+ + - 
C) Rb+ - + 
D) Br- + + 
E) Rb+ + - 
A) Br- + + 
B) N+ + - 
C) Rb+ - + 
D) Br- + + 
E) Rb+ + -

Question 9

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s14d4

Accepted Answer

A) Ti 
B) Zr 
C) Nb 
D) W 
E) Mn 
A) Ti 
B) Zr 
C) Nb 
D) W 
E) Mn

Question 10

Identify the number of valence electrons for Cd.

Accepted Answer

A) 8 
B) 10 
C) 12 
D) 2 
E) 6 
A) 8 
B) 10 
C) 12 
D) 2 
E) 6

Question 11

Of the following,which atom has the smallest atomic radius?

Accepted Answer

A) K 
B) As 
C) Rb 
D) Sb 
A) K 
B) As 
C) Rb 
D) Sb

Question 12

Which of the following have their valence electrons in the same shell?

Accepted Answer

A) Li,N,F 
B) B,Si,As 
C) N,As,Bi 
D) He,Ne,F 
A) Li,N,F 
B) B,Si,As 
C) N,As,Bi 
D) He,Ne,F

Question 13

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s14d10

Accepted Answer

A) Cd 
B) Hg 
C) Pd 
D) Au 
E) Ag 
A) Cd 
B) Hg 
C) Pd 
D) Au 
E) Ag

Question 14

Which ionization process requires the most energy?

Accepted Answer

A) W(g)? WS1U1P1+S1S1P0(g)+ eS1U1P1-S1S1P0 
B) W+(g)? WS1U1P12+S1S1P0(g)+ eS1U1P1-S1S1P0 
C) W2+(g)? WS1U1P13+S1S1P0(g)+ eS1U1P1-S1S1P0 
D) W3+(g)? WS1U1P14+S1S1P0(g)+ eS1U1P1-S1S1P0 
A) W(g)? WS1U1P1+S1S1P0(g)+ eS1U1P1-S1S1P0 
B) W+(g)? WS1U1P12+S1S1P0(g)+ eS1U1P1-S1S1P0 
C) W2+(g)? WS1U1P13+S1S1P0(g)+ eS1U1P1-S1S1P0 
D) W3+(g)? WS1U1P14+S1S1P0(g)+ eS1U1P1-S1S1P0

Question 15

Use the periodic table to determine the ground-state electron configuration for the following element: Te

Accepted Answer

A) [Kr]5s24d105p6 
B) [Kr]5s24d105p4 
C) [Xe]5s24d105p4 
D) [Xe]6s25d104f146p4 
E) [Kr]5s24d6 
A) [Kr]5s24d105p6 
B) [Kr]5s24d105p4 
C) [Xe]5s24d105p4 
D) [Xe]6s25d104f146p4 
E) [Kr]5s24d6

Question 16

Below is a list of successive ionization energies (in kJ mol-1)for a period 3 element.Identify the element and explain how you reached that conclusion.
IE2 = 2250 IE3 = 3360 IE4 = 4560 IE5 = 7010 IE6 = 8500 IE7 = 27 100

Accepted Answer

The large increase in ionizati

Question 17

Which atom in each group (I and II)has the smallest atomic radius? 
(I)Ba,Hf,At 
(II)As,Sb,Bi

Accepted Answer

A) Ba; As 
B) Ba; Bi 
C) At; As 
D) At; Bi 
A) Ba; As 
B) Ba; Bi 
C) At; As 
D) At; Bi

Question 18

An element that has the valence electron configuration 2s22p2 belongs to which period and group?

Accepted Answer

A) period 1; group 18 
B) period 2; group 12 
C) period 2; group 4 
D) period 2; group 14 
E) period 2; group 8 
A) period 1; group 18 
B) period 2; group 12 
C) period 2; group 4 
D) period 2; group 14 
E) period 2; group 8

Question 19

Identify the number of valence electrons for O.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
E) 6 
A) 0 
B) 1 
C) 2 
D) 4 
E) 6

Question 20

Which element has the ground-state electron configuration [Xe]6s2  4f14?

Accepted Answer

A) Po 
B) Tm 
C) Yb 
D) Lu 
A) Po 
B) Tm 
C) Yb 
D) Lu

Exam 8: Periodic Properties of the Elements

Which reaction below represents the first ionization of O?

The condensed electron configuration of arsenic,element 33,is ________.

Use the periodic table to predict the most stable oxidation state for the following element: F

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

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s14d7

How many electrons are in the outermost shell of the Ga3+ ion in its ground state?

An element that has the outer electron configuration 6s25d7 belongs to which period and group?

Place the following ions in order of increasing radius. Br- \quad Na+ \quad Rb+

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s14d4

Identify the number of valence electrons for Cd.

Of the following,which atom has the smallest atomic radius?

Which of the following have their valence electrons in the same shell?

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s14d10

Which ionization process requires the most energy?

Use the periodic table to determine the ground-state electron configuration for the following element: Te

Below is a list of successive ionization energies (in kJ mol-1)for a period 3 element.Identify the element and explain how you reached that conclusion. IE2 = 2250 IE3 = 3360 IE4 = 4560 IE5 = 7010 IE6 = 8500 IE7 = 27 100

Which atom in each group (I and II)has the smallest atomic radius? (I)Ba,Hf,At (II)As,Sb,Bi

An element that has the valence electron configuration 2s22p2 belongs to which period and group?

Identify the number of valence electrons for O.

Which element has the ground-state electron configuration [Xe]6s2 4f14?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules,compounds,and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

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

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s¹4d⁷

How many electrons are in the outermost shell of the Ga³⁺ ion in its ground state?

An element that has the outer electron configuration 6s²5d⁷ belongs to which period and group?

Place the following ions in order of increasing radius. Br^{- $\quad$} Na⁺ $\quad$ Rb⁺

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s¹4d⁴

Using the periodic table,identify the element with the following exception electron configuration: [Kr]5s¹4d¹⁰

Below is a list of successive ionization energies (in kJ mol^-1)for a period 3 element.Identify the element and explain how you reached that conclusion. IE₂ = 2250 IE₃ = 3360 IE₄= 4560 IE₅= 7010 IE₆= 8500 IE₇= 27 100

An element that has the valence electron configuration 2s²2p² belongs to which period and group?

Which element has the ground-state electron configuration [Xe]6s² 4f¹⁴?