Question 1

Which element would be expected to have properties similar to argon?

Accepted Answer

A) F 
B) Cl 
C) H 
D) Br 
E) Kr 
A) F 
B) Cl 
C) H 
D) Br 
E) Kr E

Question 2

An element with the general electron configuration for its outermost electrons of ns2np1 would be in which element group?

Accepted Answer

A) 2A 
B) 3A 
C) 4A 
D) 5A 
E) 8A 
A) 2A 
B) 3A 
C) 4A 
D) 5A 
E) 8A B

Question 3

Which of these choices is the electron configuration for the aluminum ion?

Accepted Answer

A) 1s22s22p63s2 
B) 1s22s22p63s23p2 
C) 1s22s22p63s23p1 
D) 1s22s22p6 
E) 1s22s22p63s23p4 
A) 1s22s22p63s2 
B) 1s22s22p63s23p2 
C) 1s22s22p63s23p1 
D) 1s22s22p6 
E) 1s22s22p63s23p4 D

Question 4

What elements and groups have properties that are most similar to those of chlorine?

Accepted Answer

A) F,Br,I,and nonmetals in Group 7A 
B) Cl,K,C,and metals in Group 1B 
C) N,P,As,and lanthanides 
D) He,Ne,Xe,and nonmetals in Group 7A 
E) O,S,and P 
A) F,Br,I,and nonmetals in Group 7A 
B) Cl,K,C,and metals in Group 1B 
C) N,P,As,and lanthanides 
D) He,Ne,Xe,and nonmetals in Group 7A 
E) O,S,and P

Question 5

In what group of the periodic table is the element with the electron configuration [Ar]4s23d104p3?

Accepted Answer

A) 1A 
B) 2A 
C) 3A 
D) 4A 
E) 5A 
A) 1A 
B) 2A 
C) 3A 
D) 4A 
E) 5A

Question 6

Which of the species listed below is not isoelectronic with the others?

Accepted Answer

A) O- 
B) F- 
C) Mg2+ 
D) Na+ 
E) N3- 
A) O- 
B) F- 
C) Mg2+ 
D) Na+ 
E) N3-

Question 7

The general electron configuration for atoms of all elements in Group 5A is

Accepted Answer

A) ns2np6. 
B) ns2np5. 
C) ns2np4. 
D) ns2np3. 
E) ns2np1. 
A) ns2np6. 
B) ns2np5. 
C) ns2np4. 
D) ns2np3. 
E) ns2np1.

Question 8

Which of the following elements has the smallest first ionization energy?

Accepted Answer

A) Rb 
B) Mg 
C) I 
D) As 
E) F 
A) Rb 
B) Mg 
C) I 
D) As 
E) F

Question 9

Which of these atoms has the greatest electron affinity?

Accepted Answer

A) S 
B) P 
C) Ga 
D) Li 
E) Cl 
A) S 
B) P 
C) Ga 
D) Li 
E) Cl

Question 10

What is the correct order of decreasing size of the following ions?

Accepted Answer

A) P3- > Cl- > K+ > Ca2+ 
B) Ca2+ > K+ > Cl- > P3- 
C) K+ > Cl- > Ca2+ > P3- 
D) K+ > Cl- > P3- > Ca2+ 
E) None of these relative size statements is correct. 
A) P3- > Cl- > K+ > Ca2+ 
B) Ca2+ > K+ > Cl- > P3- 
C) K+ > Cl- > Ca2+ > P3- 
D) K+ > Cl- > P3- > Ca2+ 
E) None of these relative size statements is correct.

Question 11

Elements with the highest first ionization energies are found in the ___________ region of the periodic table.

Accepted Answer

A) lower left 
B) upper left 
C) center 
D) lower right 
E) upper right 
A) lower left 
B) upper left 
C) center 
D) lower right 
E) upper right

Question 12

Successive ionization energies,1st,2nd,3rd,etc,provide evidence for the shell structure of the atom.For sulfur atoms,which ionization energy will show an exceptionally large increase over the preceding ionization energy?

Accepted Answer

A) 2nd 
B) 3rd 
C) 4th 
D) 5th 
E) 6th 
A) 2nd 
B) 3rd 
C) 4th 
D) 5th 
E) 6th

Question 13

The radii of ions are always smaller than the radii of the corresponding atoms of the same element.

Accepted Answer

A) True 
 B)False

Question 14

Which of these choices is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Accepted Answer

A) ns1 
B) ns2 
C) ns2np4 
D) ns2np 
E) ns2np6 (n - 1)d6 
A) ns1 
B) ns2 
C) ns2np4 
D) ns2np 
E) ns2np6 (n - 1)d6

Question 15

Select the element with the most negative electron affinity (i.e.,accepts an electron most readily).

Accepted Answer

A) H 
B) Li 
C) C 
D) F 
E) Ne 
A) H 
B) Li 
C) C 
D) F 
E) Ne

Question 16

The nineteenth century chemists arranged elements in the periodic table according to increasing

Accepted Answer

A) atomic number. 
B) number of electrons. 
C) atomic mass. 
D) number of neutrons. 
E) nuclear binding energy. 
A) atomic number. 
B) number of electrons. 
C) atomic mass. 
D) number of neutrons. 
E) nuclear binding energy.

Question 17

How many valence electrons does a tin (Sn)atom have?

Accepted Answer

A) 2 
B) 4 
C) 14 
D) 36 
E) 50 
A) 2 
B) 4 
C) 14 
D) 36 
E) 50

Question 18

Mendeleev proposed the existence of an unknown element that he called eka-aluminum.This element is now called

Accepted Answer

A) gallium. 
B) silicon. 
C) magnesium. 
D) boron. 
E) germanium. 
A) gallium. 
B) silicon. 
C) magnesium. 
D) boron. 
E) germanium.

Question 19

Rank the following elements in order of decreasing atomic radii: Br,Fr,Ca,Ba and As.

Accepted Answer

A) Fr > Ba > Ca > As > Br 
B) Br > As > Ca > Ba > Fr 
C) Fr > As > Br > Ba > Ca 
D) Fr > Ba > As > Br > Ca 
E) Ca > Ba > Fr > Br > As 
A) Fr > Ba > Ca > As > Br 
B) Br > As > Ca > Ba > Fr 
C) Fr > As > Br > Ba > Ca 
D) Fr > Ba > As > Br > Ca 
E) Ca > Ba > Fr > Br > As

Question 20

Which one of these atoms has the largest effective nuclear charge,Zeff?

Accepted Answer

A) Na 
B) K 
C) Al 
D) Ar 
E) F 
A) Na 
B) K 
C) Al 
D) Ar 
E) F

Exam 7: Electron Configuration and the Periodic Table

Which element would be expected to have properties similar to argon?

An element with the general electron configuration for its outermost electrons of ns2np1 would be in which element group?

Which of these choices is the electron configuration for the aluminum ion?

What elements and groups have properties that are most similar to those of chlorine?

In what group of the periodic table is the element with the electron configuration [Ar]4s23d104p3?

Which of the species listed below is not isoelectronic with the others?

The general electron configuration for atoms of all elements in Group 5A is

Which of the following elements has the smallest first ionization energy?

Which of these atoms has the greatest electron affinity?

What is the correct order of decreasing size of the following ions?

Elements with the highest first ionization energies are found in the ___________ region of the periodic table.

Successive ionization energies,1st,2nd,3rd,etc,provide evidence for the shell structure of the atom.For sulfur atoms,which ionization energy will show an exceptionally large increase over the preceding ionization energy?

The radii of ions are always smaller than the radii of the corresponding atoms of the same element.

Which of these choices is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Select the element with the most negative electron affinity (i.e.,accepts an electron most readily).

The nineteenth century chemists arranged elements in the periodic table according to increasing

How many valence electrons does a tin (Sn)atom have?

Mendeleev proposed the existence of an unknown element that he called eka-aluminum.This element is now called

Rank the following elements in order of decreasing atomic radii: Br,Fr,Ca,Ba and As.

Which one of these atoms has the largest effective nuclear charge,Zeff?

Chemistry: the Central Science

Atoms Molecules and Ions

Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Chemical Bonding I Basic Concepts

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

An element with the general electron configuration for its outermost electrons of ns²np¹ would be in which element group?

In what group of the periodic table is the element with the electron configuration [Ar]4s²3d¹⁰4p³?

Which one of these atoms has the largest effective nuclear charge,Z_eff?