Question 1

The value of Z for the element 37Ar is

Accepted Answer

A) 37. 
B) 39.945. 
C) 19. 
D) 21.945. 
E) 18. 
A) 37. 
B) 39.945. 
C) 19. 
D) 21.945. 
E) 18.

Question 2

What is the electron configuration of Fe?

Accepted Answer

A) 1s2 2s2 2p6 3s2 3p6 3d8 
B) 1s2 2s2 2p6 3s2 3p6 4s2 3d6 
C) 1s2 2s2 2p6 3s2 3p6 4s2 4p6 
D) 1s2 2s2 2p6 3s2 3p6 4s2 
E) 1s2 2s2 2p6 3s2 3p6 3d6 
A) 1s2 2s2 2p6 3s2 3p6 3d8 
B) 1s2 2s2 2p6 3s2 3p6 4s2 3d6 
C) 1s2 2s2 2p6 3s2 3p6 4s2 4p6 
D) 1s2 2s2 2p6 3s2 3p6 4s2 
E) 1s2 2s2 2p6 3s2 3p6 3d6

Question 3

Another name for atomic mass unit (amu)is the

Accepted Answer

A) avogadro. 
B) dalton. 
C) Kekule 
D) kelvin. 
E) mendeleev. 
A) avogadro. 
B) dalton. 
C) Kekule 
D) kelvin. 
E) mendeleev.

Question 4

An element with the same number of valence electrons as the element with the electron configuration
1s2 2s2 2p6 3s2 3p5 is

Accepted Answer

A) iodine. 
B) oxygen. 
C) argon. 
D) potassium. 
E) sulfur. 
A) iodine. 
B) oxygen. 
C) argon. 
D) potassium. 
E) sulfur.

Question 5

Which column of the periodic table contains only nonmetals?

Accepted Answer

A) 4A 
B) 5A 
C) 6A 
D) 7A 
E) 3A 
A) 4A 
B) 5A 
C) 6A 
D) 7A 
E) 3A

Question 6

The number of neutrons in an atom is equal to

Accepted Answer

A) atomic number - mass number. 
B) mass number - atomic number. 
C) the atomic number. 
D) the mass number. 
A) atomic number - mass number. 
B) mass number - atomic number. 
C) the atomic number. 
D) the mass number.

Question 7

How many neutrons does an atom of  Ti have?

Accepted Answer

A) 0 
B) 22 
C) 24 
D) 46 
E) 68 
A) 0 
B) 22 
C) 24 
D) 46 
E) 68

Question 8

What fourth period element is represented by the dot structure shown?
X:

Accepted Answer

A) K 
B) Ca 
C) V 
D) As 
E) Ti 
A) K 
B) Ca 
C) V 
D) As 
E) Ti

Question 9

Valence electrons in the main group elements are contained in which type(s)of orbitals?

Accepted Answer

A) s 
B) p 
C) s and p 
D) d 
E) f 
A) s 
B) p 
C) s and p 
D) d 
E) f

Question 10

Which group contains only d-block elements?

Accepted Answer

A) Ni,Pd,Pt 
B) Si,Ge,As 
C) Ce,Pr,Nd 
D) Kr,Xe,Rn 
E) Po,Fr,Ac 
A) Ni,Pd,Pt 
B) Si,Ge,As 
C) Ce,Pr,Nd 
D) Kr,Xe,Rn 
E) Po,Fr,Ac

Question 11

The number of valence electrons in a main group element is given by

Accepted Answer

A) atomic number. 
B) atomic weight. 
C) group number. 
D) mass number. 
E) none of the above. 
A) atomic number. 
B) atomic weight. 
C) group number. 
D) mass number. 
E) none of the above.

Question 12

Cobalt is element 27.Cobalt-60 is used in the medical treatment of cancer.How many neutrons and protons are contained in the nucleus of this isotope?

Accepted Answer

A) 27 neutrons,33 protons 
B) 33 neutrons,27 protons 
C) 27 neutrons,27 protons 
D) 33 neutrons,33 protons 
E) 60 neutrons,27 protons 
A) 27 neutrons,33 protons 
B) 33 neutrons,27 protons 
C) 27 neutrons,27 protons 
D) 33 neutrons,33 protons 
E) 60 neutrons,27 protons

Question 13

Which group contains only f-block elements?

Accepted Answer

A) Ni,Pd,Pt 
B) Si,Ge,As 
C) Ce,Pr,Nd 
D) Kr,Xe,Rn 
E) Po,Fr,Ac 
A) Ni,Pd,Pt 
B) Si,Ge,As 
C) Ce,Pr,Nd 
D) Kr,Xe,Rn 
E) Po,Fr,Ac

Question 14

Which group contains only p-block elements?

Accepted Answer

A) N,S,Br 
B) Mn,Cu,Ag 
C) K,Mg,Al 
D) Ce,Pr,Nd 
E) Na,P,Cl 
A) N,S,Br 
B) Mn,Cu,Ag 
C) K,Mg,Al 
D) Ce,Pr,Nd 
E) Na,P,Cl

Question 15

Which of the following represents a pair of isotopes?

Accepted Answer

A)   C,  N 
B)   H,  H 
C)   S, S2 
D) O2,O3 
E) all are pairs of isotopes 
A)   C,  N 
B)   H,  H 
C)   S, S2 
D) O2,O3 
E) all are pairs of isotopes

Question 16

The number of valence electrons in an element with electron configuration 1s2 2s2 2p6 3s2 3p4 is

Accepted Answer

A) 2. 
B) 4. 
C) 6. 
D) 8. 
E) 16. 
A) 2. 
B) 4. 
C) 6. 
D) 8. 
E) 16.

Exam 2: Atoms and the Periodic Table

The value of Z for the element 37Ar is

What is the electron configuration of Fe?

Another name for atomic mass unit (amu)is the

An element with the same number of valence electrons as the element with the electron configuration 1s2 2s2 2p6 3s2 3p5 is

Which column of the periodic table contains only nonmetals?

The number of neutrons in an atom is equal to

How many neutrons does an atom of Ti have?

What fourth period element is represented by the dot structure shown? X:

Valence electrons in the main group elements are contained in which type(s)of orbitals?

Which group contains only d-block elements?

The number of valence electrons in a main group element is given by

Cobalt is element 27.Cobalt-60 is used in the medical treatment of cancer.How many neutrons and protons are contained in the nucleus of this isotope?

Which group contains only f-block elements?

Which group contains only p-block elements?

Which of the following represents a pair of isotopes?

The number of valence electrons in an element with electron configuration 1s2 2s2 2p6 3s2 3p4 is

Matter and Measurements

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Aldehydes and Ketones

Amines

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

Carbohydrates

The Generation of Biochemical Energy

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Protein and Amino Acid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

The value of Z for the element ³⁷Ar is

An element with the same number of valence electrons as the element with the electron configuration 1s²2s²2p⁶3s²3p⁵ is

The number of valence electrons in an element with electron configuration 1s²2s²2p⁶3s²3p⁴ is