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What Happens to the Atomic Number (Z) and the Mass

Question 35

Multiple Choice

What happens to the atomic number (Z) and the mass number (A) when a nucleus emits an alpha particle?

A) Z increases by 1; A is unchanged.
B) Z is unchanged; A is unchanged.
C) Z decreases by 2; A decreases by 4.
D) Z decreases by 1; A is unchanged.

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