3 years ago

How many neutrons does element X have if it’s atomic number is 28 and it’s mass number is 81?

Physics

2 answers:

Sedaia [141]3 years ago

8 0

The answer is 53,hope this help

Sauron [17]3 years ago

3 0

Answer:

Explanation:

M-A=N

Mass-Atomic #= Neutrons

81-28= 53

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