Question 1

Place the following in order of increasing metallic character. Rb Cs K Na

Accepted Answer

A)  K < Cs < Na < Rb 
B)  Na < K < Rb < Cs 
C)  Cs < Rb < K < Na 
D)  K < Cs < Rb < Na 
E)  Na < Rb < Cs < K 
A)  K < Cs < Na < Rb 
B)  Na < K < Rb < Cs 
C)  Cs < Rb < K < Na 
D)  K < Cs < Rb < Na 
E)  Na < Rb < Cs < K

Question 2

Which of the following elements is NOT a metal?

Accepted Answer

A)  Ba 
B)  Mg 
C)  Xe 
D)  Pb 
E)  Ga 
A)  Ba 
B)  Mg 
C)  Xe 
D)  Pb 
E)  Ga

Question 3

Which of the following elements is a halogen?

Accepted Answer

A)  Sb 
B)  C 
C)  I 
D)  Sn 
E)  He 
A)  Sb 
B)  C 
C)  I 
D)  Sn 
E)  He

Question 4

Which of the following elements is classified as a semimetal?

Accepted Answer

A)  calcium 
B)  silicon 
C)  fluorine 
D)  uranium 
A)  calcium 
B)  silicon 
C)  fluorine 
D)  uranium

Question 5

Which of the following elements is a metalloid?

Accepted Answer

A)  Sb 
B)  N 
C)  Br 
D)  Co 
E)  Kr 
A)  Sb 
B)  N 
C)  Br 
D)  Co 
E)  Kr

Question 6

List the noble gas that has the highest ionization energy.

Accepted Answer

The answer of List the noble gas that has the...

Question 7

What group of elements in the periodic table are the most unreactive and why?

Accepted Answer

The noble gases are the most u

Question 8

Give the ground state electron configuration for Se2⁻.

Accepted Answer

A)  [Ar]4s23d104p4 
B)  [Ar]4s23d104p2 
C)  [Ar]4s24p6 
D)  [Ar]4s23d104p6 
E)  [Ar]4s23d84p6 
A)  [Ar]4s23d104p4 
B)  [Ar]4s23d104p2 
C)  [Ar]4s24p6 
D)  [Ar]4s23d104p6 
E)  [Ar]4s23d84p6

Question 9

Identify a characteristic of halogens.

Accepted Answer

A)  powerful reducing agents 
B)  forms water in reactions 
C)  powerful oxidizing agents 
D)  absorbs water in reactions 
E)  inert 
A)  powerful reducing agents 
B)  forms water in reactions 
C)  powerful oxidizing agents 
D)  absorbs water in reactions 
E)  inert

Question 10

Place the following in order of increasing atomic radius. As O Br

Accepted Answer

A)  As < Br < O 
B)  O < As < Br 
C)  Br < As < O 
D)  As < O < Br 
E)  O < Br < As 
A)  As < Br < O 
B)  O < As < Br 
C)  Br < As < O 
D)  As < O < Br 
E)  O < Br < As

Question 11

Why do successive ionization energies increase?

Accepted Answer

After removing the first electron,the sp

Question 12

In which of the following sets do all species have the same number of protons?

Accepted Answer

A)  Cl-, Ar, Ca2+ 
B)  N, O2-, F- 
C)  Sc3+, Y3+, La3+ 
D)  Cr, Cr2+, Cr3+ 
A)  Cl-, Ar, Ca2+ 
B)  N, O2-, F- 
C)  Sc3+, Y3+, La3+ 
D)  Cr, Cr2+, Cr3+

Question 13

Give the ground state electron configuration for Mg2⁺.

Accepted Answer

A)  1s22s22p63s2 
B)  1s22s22p6 
C)  1s22s22p63s23p2 
D)  1s22s22p63s23p6 
E)  1s22s22p63s1 
A)  1s22s22p63s2 
B)  1s22s22p6 
C)  1s22s22p63s23p2 
D)  1s22s22p63s23p6 
E)  1s22s22p63s1

Question 14

Why is the first ionization energy of sulfur smaller than the first ionization energy of phosphorus?

Accepted Answer

When sulfur loses one electron,it take o

Question 15

How many electrons does the Se2- ion possess?

Accepted Answer

A)  32 
B)  36 
C)  4 
D)  8 
E)  34 
A)  32 
B)  36 
C)  4 
D)  8 
E)  34

Question 16

Give the ground state electron configuration for Se.

Accepted Answer

A)  [Ar]4s23d104p4 
B)  [Ar]4s24d104p4 
C)  [Ar]4s23d104p6 
D)  [Ar]4s23d10 
E)  [Ar]3d104p4 
A)  [Ar]4s23d104p4 
B)  [Ar]4s24d104p4 
C)  [Ar]4s23d104p6 
D)  [Ar]4s23d10 
E)  [Ar]3d104p4

Question 17

Predict the charge that an ion formed from sulfur would have.

Accepted Answer

A)  1- 
B)  6+ 
C)  3- 
D)  4+ 
E)  2- 
A)  1- 
B)  6+ 
C)  3- 
D)  4+ 
E)  2-

Question 18

Which of the following statements is FALSE?

Accepted Answer

A)  An anion is usually larger than its corresponding atom. 
B)  Metals tend to form cations. 
C)  An atoms is usually larger than its corresponding cation. 
D)  The halogens tend to form 1+ ions. 
E)  Nonmetals tend to gain electrons. 
A)  An anion is usually larger than its corresponding atom. 
B)  Metals tend to form cations. 
C)  An atoms is usually larger than its corresponding cation. 
D)  The halogens tend to form 1+ ions. 
E)  Nonmetals tend to gain electrons.

Question 19

How many valence electrons does an atom of Al possess?

Accepted Answer

A)  1 
B)  2 
C)  5 
D)  3 
E)  8 
A)  1 
B)  2 
C)  5 
D)  3 
E)  8

Question 20

Give the name of the element whose symbol is Na.

Accepted Answer

The answer of Give the name of the element whose...

Exam 4: Periodic Properties of the Elements

Place the following in order of increasing metallic character. Rb Cs K Na

Which of the following elements is NOT a metal?

Which of the following elements is a halogen?

Which of the following elements is classified as a semimetal?

Which of the following elements is a metalloid?

List the noble gas that has the highest ionization energy.

What group of elements in the periodic table are the most unreactive and why?

Give the ground state electron configuration for Se2⁻.

Identify a characteristic of halogens.

Place the following in order of increasing atomic radius. As O Br

Why do successive ionization energies increase?

In which of the following sets do all species have the same number of protons?

Give the ground state electron configuration for Mg2⁺.

Why is the first ionization energy of sulfur smaller than the first ionization energy of phosphorus?

How many electrons does the Se2- ion possess?

Give the ground state electron configuration for Se.

Predict the charge that an ion formed from sulfur would have.

Which of the following statements is FALSE?

How many valence electrons does an atom of Al possess?

Give the name of the element whose symbol is Na.

Essentials: Units, Measurements, and Problem Solving

Atoms

The Quantum Mechanical Model of the Atom

Molecules and Compounds

Chemical Bonding I

Chemical Bonding Ii

Chemical Reactions and Chemical Quantities

Introduction to Solutions and Aqueous Reactions

Thermochemistry

Gases

Liquids, Solids, and Intermolecular Forces

Crystalline Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Transition Metals and Coordination Compounds

Filters

Give the ground state electron configuration for Se²⁻.

Give the ground state electron configuration for Mg²⁺.

How many electrons does the Se^2- ion possess?