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If an atom of sodium combines with (captures) an alpha particle that has 2 protons and 2 neutrons, its new mass number will be

A)

13 amu

B)

15 amu

C)

25 amu

D)

27 amu

Verified Answer :

scme1702

The mass of sodium is 23 and the mass of the absorbed alpha particle is 4. The mass:
23 + 4
= 27
The answer is D, 27 amu.

bunnylove4849

Answer:

D 27 amu

Explanation:

got the answer right on usa test prep

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