Question 1

Which of the following instruments provides a quantized measurement?

Accepted Answer

A) meter stick 
B) beam balance 
C) 100-mL beaker 
D) digital clock 
E) none of the above 
A) meter stick 
B) beam balance 
C) 100-mL beaker 
D) digital clock 
E) none of the above

Question 2

What is the electron configuration for an atom of fluorine?

Accepted Answer

A) 1S₂ 2S₂ 2p3 
B) 1S₂ 2S₂ 2p5 
C) 1S₂ 2S₂ 2p6 3s1 
D) 1S₂ 2S₂ 2p6 3S₂ 3p5 
E) none of the above 
A) 1S₂ 2S₂ 2p3 
B) 1S₂ 2S₂ 2p5 
C) 1S₂ 2S₂ 2p6 3s1 
D) 1S₂ 2S₂ 2p6 3S₂ 3p5 
E) none of the above

Question 3

Which electron sublevel follows the 4d sublevel according to increasing energy?

Accepted Answer

A) 4s 
B) 4p 
C) 5s 
D) 5p 
E) 5d 
A) 4s 
B) 4p 
C) 5s 
D) 5p 
E) 5d

Question 4

How many neutrons are in the nucleus of an atom of 195Pt?

Accepted Answer

A) 78 
B) 117 
C) 195 
D) 273 
E) none of the above 
A) 78 
B) 117 
C) 195 
D) 273 
E) none of the above

Question 5

Which of the following subatomic particles are found outside the nucleus?

Accepted Answer

A) electron and neutron 
B) neutron and proton 
C) proton and electron 
D) all of the above 
E) none of the above 
A) electron and neutron 
B) neutron and proton 
C) proton and electron 
D) all of the above 
E) none of the above

Question 6

Which of the following energy level changes in a hydrogen atom produces a visible spectral line?

Accepted Answer

A) 2 → 1 
B) 3 → 1 
C) 4 → 1 
D) all of the above 
E) none of the above 
A) 2 → 1 
B) 3 → 1 
C) 4 → 1 
D) all of the above 
E) none of the above

Question 7

Element Z has two natural isotopes: Z-79 (78.918 amu)and Z-81 (80.916 amu).Calculate the atomic mass of element Z given the abundance of Z-81 is 49.31%.

Accepted Answer

A) 79.00 amu 
B) 79.90 amu 
C) 80.00 amu 
D) 119.93 amu 
E) 120.92 amu 
A) 79.00 amu 
B) 79.90 amu 
C) 80.00 amu 
D) 119.93 amu 
E) 120.92 amu

Question 8

How many neutrons are in the nucleus of an atom of silver-107?

Accepted Answer

A) 47 
B) 60 
C) 107 
D) 154 
E) none of the above 
A) 47 
B) 60 
C) 107 
D) 154 
E) none of the above

Question 9

What is the maximum number of electrons that can occupy a p energy sublevel?

Accepted Answer

A) 2 
B) 6 
C) 10 
D) 14 
E) none of the above 
A) 2 
B) 6 
C) 10 
D) 14 
E) none of the above

Question 10

Which of the following types of radiation has the highest velocity?

Accepted Answer

A) X rays 
B) ultraviolet 
C) visible 
D) infrared 
E) All radiation has the same velocity. 
A) X rays 
B) ultraviolet 
C) visible 
D) infrared 
E) All radiation has the same velocity.

Question 11

Which subatomic particle has a relative charge of +1 and a mass of ~1 amu?

Accepted Answer

A) alpha 
B) electron 
C) neutron 
D) proton 
E) none of the above 
A) alpha 
B) electron 
C) neutron 
D) proton 
E) none of the above

Question 12

Which of the following elements has at least one stable isotope? (Hint: Refer to the Periodic Table. )

Accepted Answer

A) Ra 
B) Rf 
C) Rh 
D) Rn 
E) none of the above 
A) Ra 
B) Rf 
C) Rh 
D) Rn 
E) none of the above

Question 13

Which of the following physical properties is different for ordinary water and heavy water?

Accepted Answer

A) density 
B) melting point 
C) molar mass 
D) all of the above 
E) none of the above 
A) density 
B) melting point 
C) molar mass 
D) all of the above 
E) none of the above

Question 14

Which of the following instruments provides a quantized measurement?

Accepted Answer

A) metric ruler 
B) electronic balance 
C) graduated cylinder 
D) sweep-second watch 
E) none of the above 
A) metric ruler 
B) electronic balance 
C) graduated cylinder 
D) sweep-second watch 
E) none of the above

Question 15

Which of the following physical properties has a higher value for heavy water than for ordinary water?

Accepted Answer

A) molar mass 
B) melting point 
C) heat of fusion 
D) all of the above 
E) none of the above 
A) molar mass 
B) melting point 
C) heat of fusion 
D) all of the above 
E) none of the above

Question 16

Which of the following wavelengths of light has the lowest energy?

Accepted Answer

A) 440 nm 
B) 470 nm 
C) 540 nm 
D) 650 nm 
E) All wavelengths have the same energy. 
A) 440 nm 
B) 470 nm 
C) 540 nm 
D) 650 nm 
E) All wavelengths have the same energy.

Question 17

Which of the following is true of an electron orbital?

Accepted Answer

A) An orbital may not gain or lose energy. 
B) An orbital represents a probability boundary. 
C) An orbital represents an energy state of an electron. 
D) An orbital may contain no more than two electrons. 
E) all of the above 
A) An orbital may not gain or lose energy. 
B) An orbital represents a probability boundary. 
C) An orbital represents an energy state of an electron. 
D) An orbital may contain no more than two electrons. 
E) all of the above

Question 18

How many neutrons are in the nucleus of an atom of   Co?

Accepted Answer

A) 27 
B) 33 
C) 60 
D) 87 
E) none of the above 
A) 27 
B) 33 
C) 60 
D) 87 
E) none of the above

Question 19

What is the electron configuration for an atom of nickel?

Accepted Answer

A) 1S₂ 2S₂ 2p6 3S₂ 3p6 3d8 
B) 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 3d8 
C) 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 4p8 
D) 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 4d8 
E) none of the above 
A) 1S₂ 2S₂ 2p6 3S₂ 3p6 3d8 
B) 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 3d8 
C) 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 4p8 
D) 1S₂ 2S₂ 2p6 3S₂ 3p6 4S₂ 4d8 
E) none of the above

Question 20

What is the maximum number of electrons in a 4s orbital?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 6 
E) none of the above 
A) 1 
B) 2 
C) 4 
D) 6 
E) none of the above

Exam 4: Models of the Atom

Which of the following instruments provides a quantized measurement?

What is the electron configuration for an atom of fluorine?

Which electron sublevel follows the 4d sublevel according to increasing energy?

How many neutrons are in the nucleus of an atom of 195Pt?

Which of the following subatomic particles are found outside the nucleus?

Which of the following energy level changes in a hydrogen atom produces a visible spectral line?

Element Z has two natural isotopes: Z-79 (78.918 amu)and Z-81 (80.916 amu).Calculate the atomic mass of element Z given the abundance of Z-81 is 49.31%.

How many neutrons are in the nucleus of an atom of silver-107?

What is the maximum number of electrons that can occupy a p energy sublevel?

Which of the following types of radiation has the highest velocity?

Which subatomic particle has a relative charge of +1 and a mass of ~1 amu?

Which of the following elements has at least one stable isotope? (Hint: Refer to the Periodic Table. )

Which of the following physical properties is different for ordinary water and heavy water?

Which of the following instruments provides a quantized measurement?

Which of the following physical properties has a higher value for heavy water than for ordinary water?

Which of the following wavelengths of light has the lowest energy?

Which of the following is true of an electron orbital?

How many neutrons are in the nucleus of an atom of Co?

What is the electron configuration for an atom of nickel?

What is the maximum number of electrons in a 4s orbital?

Introduction to Chemistry

The Metric System

Matter and Energy

The Periodic Table

Language of Chemistry

Chemical Reactions

The Mole Concept

Chemical Equation Calculations

Gases

Liquids and Solids

Chemical Bonding

Solutions

Acids and Bases

Advanced Problem Solving

Chemical Equilibrium

Oxidation and Reduction

Nuclear Chemistry

Organic Chemistry

Biochemistry

Interlude: Prerequisite Science Skills

Filters