The mass number of an atom of 14C is ________.
A) 6
B) 20
C) 8
D) 14
E) 10
Correct Answer:
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Q185: What is the molecular formula for nonane?
A)C9H18
B)C9H20
C)C10H20
D)C10H22
E)C10H24
Q186: There are _ protons, _ electrons, and
Q186: Of the following,the subatomic particle with the
Q191: 200 pm is the same as _
Q191: What is the molecular formula for propane?
A)C2H8
B)C3H6
C)C3H8
D)C4H8
E)C4H10
Q192: What is the molecular formula for octane?
A)C4H10
B)C5H10
C)C6H14
D)C14H28
E)C8H18
Q194: What is the formula for perchloric acid?
A)HClO
B)HClO3
C)HClO4
D)HClO2
E)HCl
Q194: In the symbol below, X = _.
Q195: An atom of 118Xe contains _ neutrons.
A)54
B)172
C)64
D)110
E)118
Q198: 87 pm is the same as _
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