Question 1

Copper occurs naturally as 63Cu and 65Cu.Which isotope is more abundant? (Hint: Refer to the Periodic Table. )

Accepted Answer

A) copper-34 
B) copper-36 
C) copper-63 
D) copper-65 
E) none of the above 
A) copper-34 
B) copper-36 
C) copper-63 
D) copper-65 
E) none of the above

Question 2

Which of the following instruments produces quantized musical notes?

Accepted Answer

A) banjo 
B) harp 
C) keyboard 
D) ukulele 
E) all of the above 
A) banjo 
B) harp 
C) keyboard 
D) ukulele 
E) all of the above

Question 3

What is the term for the collection of narrow bands of light that results from excited atoms of a given element releasing energy?

Accepted Answer

A) continuous spectrum 
B) electromagnetic spectrum 
C) emission line spectrum 
D) radiant energy spectrum 
E) none of the above 
A) continuous spectrum 
B) electromagnetic spectrum 
C) emission line spectrum 
D) radiant energy spectrum 
E) none of the above

Question 4

How many orbitals are in the 4p subshell?

Accepted Answer

A) 1 
B) 3 
C) 4 
D) 5 
E) none of the above 
A) 1 
B) 3 
C) 4 
D) 5 
E) none of the above

Question 5

What is the approximate diameter of an atom?

Accepted Answer

A) 10-13 cm 
B) 10-8 cm 
C) 1 cm 
D) 108 cm 
E) 1013 cm 
A) 10-13 cm 
B) 10-8 cm 
C) 1 cm 
D) 108 cm 
E) 1013 cm

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

A) 3p 
B) 3d 
C) 4p 
D) 4d 
E) 5s 
A) 3p 
B) 3d 
C) 4p 
D) 4d 
E) 5s

Question 8

What type of radiation is emitted when an electron in a hydrogen atom drops from energy level 5 to 4?

Accepted Answer

A) infrared 
B) visible 
C) ultraviolet 
D) X ray 
E) gamma ray 
A) infrared 
B) visible 
C) ultraviolet 
D) X ray 
E) gamma ray

Question 9

Which of the following produces the "atomic fingerprint" of an element?

Accepted Answer

A) excited electrons jumping to a higher energy level 
B) excited electrons dropping to a lower energy level 
C) excited protons jumping to a higher energy level 
D) excited protons dropping to a lower energy level 
E) none of the above 
A) excited electrons jumping to a higher energy level 
B) excited electrons dropping to a lower energy level 
C) excited protons jumping to a higher energy level 
D) excited protons dropping to a lower energy level 
E) none of the above

Question 10

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

Accepted Answer

A) density 
B) boiling point 
C) heat of vaporization 
D) all of the above 
E) none of the above 
A) density 
B) boiling point 
C) heat of vaporization 
D) all of the above 
E) none of the above

Question 11

Which of the following wavelengths of light is in the infrared region of the radiant energy spectrum?

Accepted Answer

A) 180 nm 
B) 380 nm 
C) 580 nm 
D) 780 nm 
E) all of the above 
A) 180 nm 
B) 380 nm 
C) 580 nm 
D) 780 nm 
E) all of the above

Question 12

What type of radiation is emitted when an electron in a hydrogen atom drops from energy level 5 to 2?

Accepted Answer

A) infrared 
B) visible 
C) ultraviolet 
D) X ray 
E) gamma ray 
A) infrared 
B) visible 
C) ultraviolet 
D) X ray 
E) gamma ray

Question 13

What is the maximum number of electrons that can occupy the 1st principal energy level?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 8 
E) none of the above 
A) 1 
B) 2 
C) 4 
D) 8 
E) none of the above

Question 14

Element X has two natural isotopes: X-6 (6.015 amu)and X-7 (7.016 amu).Calculate the atomic mass of element X given the abundance of X-7 is 92.5%.

Accepted Answer

A) 6.09 amu 
B) 6.50 amu 
C) 6.52 amu 
D) 6.94 amu 
E) 12.5 amu 
A) 6.09 amu 
B) 6.50 amu 
C) 6.52 amu 
D) 6.94 amu 
E) 12.5 amu

Question 15

Which of the following is evidence for an electron quantum jump?

Accepted Answer

A) infrared spectrum 
B) line spectrum 
C) ultraviolet spectrum 
D) visible spectrum 
E) none of the above 
A) infrared spectrum 
B) line spectrum 
C) ultraviolet spectrum 
D) visible spectrum 
E) none of the above

Question 16

How was Dalton able to accept a degree from Oxford dressed in a scarlet robe,when wearing scarlet was forbidden by his Quaker faith?

Accepted Answer

A) Dalton was color-blind and the robe appeared gray. 
B) Dalton had to refuse the honor. 
C) Dalton received special permission. 
D) Dalton was given a private ceremony. 
E) Dalton ignored his Quaker faith. 
A) Dalton was color-blind and the robe appeared gray. 
B) Dalton had to refuse the honor. 
C) Dalton received special permission. 
D) Dalton was given a private ceremony. 
E) Dalton ignored his Quaker faith.

Question 17

In 1895 lines were observed in the spectrum of uranium ore identical to those of helium in the spectrum of the Sun.Which of the following produced the lines in the helium spectrum?

Accepted Answer

A) excited electrons jumping to a higher energy level 
B) excited electrons dropping to a lower energy level 
C) excited protons jumping to a higher energy level 
D) excited protons dropping to a lower energy level 
E) none of the above 
A) excited electrons jumping to a higher energy level 
B) excited electrons dropping to a lower energy level 
C) excited protons jumping to a higher energy level 
D) excited protons dropping to a lower energy level 
E) none of the above

Question 18

Given that the only naturally occurring isotope of sodium is 23Na,what is its isotopic mass? (Hint: Refer to the Periodic Table. )

Accepted Answer

A) 11.00 amu 
B) 11.99 amu 
C) 12.00 amu 
D) 22.99 amu 
E) 34.99 amu 
A) 11.00 amu 
B) 11.99 amu 
C) 12.00 amu 
D) 22.99 amu 
E) 34.99 amu

Question 19

How many energy sublevels exist within in the 2nd principal energy level?

Accepted Answer

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

Question 20

What is the term for the atomic model that describes electrons circling the nucleus in an orbit of specific energy?

Accepted Answer

A) Bohr atom 
B) Rutherford atom 
C) Thomson atom 
D) quantum mechanical atom 
E) none of the above 
A) Bohr atom 
B) Rutherford atom 
C) Thomson atom 
D) quantum mechanical atom 
E) none of the above

Exam 4: Models of the Atom

Copper occurs naturally as 63Cu and 65Cu.Which isotope is more abundant? (Hint: Refer to the Periodic Table. )

Which of the following instruments produces quantized musical notes?

What is the term for the collection of narrow bands of light that results from excited atoms of a given element releasing energy?

How many orbitals are in the 4p subshell?

What is the approximate diameter of an atom?

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

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

What type of radiation is emitted when an electron in a hydrogen atom drops from energy level 5 to 4?

Which of the following produces the "atomic fingerprint" of an element?

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

Which of the following wavelengths of light is in the infrared region of the radiant energy spectrum?

What type of radiation is emitted when an electron in a hydrogen atom drops from energy level 5 to 2?

What is the maximum number of electrons that can occupy the 1st principal energy level?

Element X has two natural isotopes: X-6 (6.015 amu)and X-7 (7.016 amu).Calculate the atomic mass of element X given the abundance of X-7 is 92.5%.

Which of the following is evidence for an electron quantum jump?

How was Dalton able to accept a degree from Oxford dressed in a scarlet robe,when wearing scarlet was forbidden by his Quaker faith?

In 1895 lines were observed in the spectrum of uranium ore identical to those of helium in the spectrum of the Sun.Which of the following produced the lines in the helium spectrum?

Given that the only naturally occurring isotope of sodium is 23Na,what is its isotopic mass? (Hint: Refer to the Periodic Table. )

How many energy sublevels exist within in the 2nd principal energy level?

What is the term for the atomic model that describes electrons circling the nucleus in an orbit of specific energy?

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