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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

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
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2 votes
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

asked
User Lazd
by
7.6k points

2 Answers

1 vote

Answer:

D 27 amu

Step-by-step explanation:

got the answer right on usa test prep

answered
User Melodee
by
8.7k points
4 votes
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.
answered
User Yihangho
by
8.1k points
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