Question 1

If an astronaut landed on a planet composed of antimatter, there would be an explosion and the

Accepted Answer

A) planet would annihilate. 
B) astronaut would annihilate. 
C) astronaut and an equal amount of planet antimatter would both annihilate. 
A) planet would annihilate. 
B) astronaut would annihilate. 
C) astronaut and an equal amount of planet antimatter would both annihilate.

Question 2

The chance that at least one of the atoms exhaled in your previous breath will be inhaled in your next breath is

Accepted Answer

A) very low. 
B) very high. 
C) zero. 
A) very low. 
B) very high. 
C) zero.

Question 3

How many different kinds of elements are 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 4

Which of these atoms has the greatest amount of electrical charge in its nucleus?

Accepted Answer

A) helium 
B) carbon 
C) iron 
D) gold 
E) uranium 
A) helium 
B) carbon 
C) iron 
D) gold 
E) uranium

Question 5

Compared to the diameter of a zirconium atom (A = 40), the diameter of a mercury atom (A = is approximately

Accepted Answer

A) four times as large. 
B) twice as large. 
C) the same size. 
D) one-half as large. 
E) one-quarter as large. 
A) four times as large. 
B) twice as large. 
C) the same size. 
D) one-half as large. 
E) one-quarter as large.

Question 6

Which of the following is NOT a compound?

Accepted Answer

A) air 
B) ammonia 
C) water 
D) salt 
E) all are compounds 
A) air 
B) ammonia 
C) water 
D) salt 
E) all are compounds

Question 7

The electrical force is stronger between the nucleus and an inner electron for atoms of

Accepted Answer

A) low atomic number. 
B) high atomic number. 
C) both of these 
D) neither of these 
A) low atomic number. 
B) high atomic number. 
C) both of these 
D) neither of these

Question 8

An atomic model of the atom is

Accepted Answer

A) a symbolic representation of the atom. 
B) a stepping stone to further understanding. 
C) an abstraction enabling predictions. 
D) all of the above 
A) a symbolic representation of the atom. 
B) a stepping stone to further understanding. 
C) an abstraction enabling predictions. 
D) all of the above

Question 9

The air in this room has

Accepted Answer

A) mass. 
B) weight. 
C) energy. 
D) all of the above 
E) none of the above 
A) mass. 
B) weight. 
C) energy. 
D) all of the above 
E) none of the above

Question 10

What is the molecular mass of a water molecule?

Accepted Answer

A) 10 amu 
B) 12 amu 
C) 15 amu 
D) 18 amu 
E) none of the above 
A) 10 amu 
B) 12 amu 
C) 15 amu 
D) 18 amu 
E) none of the above

Exam 11: Atomic Nature of Matter

If an astronaut landed on a planet composed of antimatter, there would be an explosion and the

The chance that at least one of the atoms exhaled in your previous breath will be inhaled in your next breath is

How many different kinds of elements are in a water molecule?

Which of these atoms has the greatest amount of electrical charge in its nucleus?

Compared to the diameter of a zirconium atom (A = 40), the diameter of a mercury atom (A = is approximately

Which of the following is NOT a compound?

The electrical force is stronger between the nucleus and an inner electron for atoms of

An atomic model of the atom is

The air in this room has

What is the molecular mass of a water molecule?

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