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

Respuesta :

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.

Answer:

D 27 amu

Explanation:

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