Question 1

Compared to the atoms that make up the body of an elderly person, the atoms that make up the body of a newborn baby are

Accepted Answer

A) newer. 
B) actually older. 
C) the same age. 
A) newer. 
B) actually older. 
C) the same age.

Question 2

The volume of matter is due mostly to its

Accepted Answer

A) protons. 
B) electrons. 
C) both of these 
A) protons. 
B) electrons. 
C) both of these

Question 3

Which of the following is a gas?

Accepted Answer

A) lithium 
B) carbon 
C) neon 
D) sodium 
A) lithium 
B) carbon 
C) neon 
D) sodium

Question 4

To change mercury into gold, a pair of protons must be

Accepted Answer

A) removed from the mercury nucleus. 
B) added to the mercury nucleus. 
C) either of these 
D) neither of these 
A) removed from the mercury nucleus. 
B) added to the mercury nucleus. 
C) either of these 
D) neither of these

Question 5

The mass of matter is due mostly to its

Accepted Answer

A) protons. 
B) electrons. 
C) both of these 
A) protons. 
B) electrons. 
C) both of these

Question 6

Compared to the mass of a hydrogen atom, the mass of an oxygen atom is

Accepted Answer

A) 8 times as great. 
B) 12 times as great. 
C) 16 times as great. 
D) appreciably more than 16 times as great. 
A) 8 times as great. 
B) 12 times as great. 
C) 16 times as great. 
D) appreciably more than 16 times as great.

Question 7

The chemical properties of matter are due mostly to their

Accepted Answer

A) protons. 
B) electrons. 
C) neutrons. 
A) protons. 
B) electrons. 
C) neutrons.

Question 8

The element gold contains

Accepted Answer

A) gold atoms. 
B) atoms that combine to produce gold. 
C) gold atoms plus various slightly lighter and heavier atoms. 
D) none of the above 
A) gold atoms. 
B) atoms that combine to produce gold. 
C) gold atoms plus various slightly lighter and heavier atoms. 
D) none of the above

Question 9

When carbon and oxygen atoms combine, energy is

Accepted Answer

A) absorbed by the reaction. 
B) released by the reaction. 
C) not involved. 
A) absorbed by the reaction. 
B) released by the reaction. 
C) not involved.

Question 10

In our part of the universe, antimatter is

Accepted Answer

A) non-existent. 
B) plentiful. 
C) short-lived. 
D) long-lived. 
A) non-existent. 
B) plentiful. 
C) short-lived. 
D) long-lived.

Question 11

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of

Accepted Answer

A) a large auditorium. 
B) a large city. 
C) the United States. 
D) the whole world. 
E) none of the above 
A) a large auditorium. 
B) a large city. 
C) the United States. 
D) the whole world. 
E) none of the above

Question 12

What is the total number of individual atoms in a water molecule?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
E) none 
A) one 
B) two 
C) three 
D) four 
E) none

Question 13

What did Robert Brown see in his microscope?

Accepted Answer

A) straight-line motion 
B) circular motions 
C) parabolic motions 
D) random motions 
A) straight-line motion 
B) circular motions 
C) parabolic motions 
D) random motions

Question 14

The difficulty of taking a photograph of an atom with light is

Accepted Answer

A) unwanted diffraction. 
B) that atoms are smaller than wavelengths of light. 
C) both of these 
D) neither of these 
A) unwanted diffraction. 
B) that atoms are smaller than wavelengths of light. 
C) both of these 
D) neither of these

Question 15

Atoms can be photographed by

Accepted Answer

A) electron beams. 
B) scanning electron microscopes. 
C) both of these 
D) neither of these 
A) electron beams. 
B) scanning electron microscopes. 
C) both of these 
D) neither of these

Question 16

Atomic number refers to the number of

Accepted Answer

A) protons in the nucleus. 
B) neutrons in the nucleus. 
C) nucleons in the nucleus. 
A) protons in the nucleus. 
B) neutrons in the nucleus. 
C) nucleons in the nucleus.

Question 17

Compared to the average size of a hydrogen atom, the average size of a helium atom is

Accepted Answer

A) larger. 
B) smaller. 
C) about the same. 
A) larger. 
B) smaller. 
C) about the same.

Question 18

A pair of helium nuclei fused together produces

Accepted Answer

A) helium isotope. 
B) lithium. 
C) beryllium. 
D) carbon. 
E) iron. 
A) helium isotope. 
B) lithium. 
C) beryllium. 
D) carbon. 
E) iron.

Question 19

Which of the following elements has the most mass?

Accepted Answer

A) hydrogen 
B) iron 
C) lead 
D) uranium 
E) all have the same mass 
A) hydrogen 
B) iron 
C) lead 
D) uranium 
E) all have the same mass

Question 20

An ion and an isotope are

Accepted Answer

A) very much one and the same 
B) very unlike 
C) opposites. 
A) very much one and the same 
B) very unlike 
C) opposites.

Exam 11: Atomic Nature of Matter

Compared to the atoms that make up the body of an elderly person, the atoms that make up the body of a newborn baby are

The volume of matter is due mostly to its

Which of the following is a gas?

To change mercury into gold, a pair of protons must be

The mass of matter is due mostly to its

Compared to the mass of a hydrogen atom, the mass of an oxygen atom is

The chemical properties of matter are due mostly to their

The element gold contains

When carbon and oxygen atoms combine, energy is

In our part of the universe, antimatter is

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of

What is the total number of individual atoms in a water molecule?

What did Robert Brown see in his microscope?

The difficulty of taking a photograph of an atom with light is

Atoms can be photographed by

Atomic number refers to the number of

Compared to the average size of a hydrogen atom, the average size of a helium atom is

A pair of helium nuclei fused together produces

Which of the following elements has the most mass?

An ion and an isotope are

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