An atom of helium (42He) has
A) two protons
B) four protons
C) four neutrons
D) four electrons
Correct Answer:
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Q31: How many neutrons does 73Li (lithium) have?
A)
Q32: If a particle strikes a nucleus with
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A)
Q38: The L shell can hold _ electrons.
A)
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Q40: An atom of oxygen (168O) has
A) eight
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