How many neutrons does a calcium atom have if the mass number is 42

asked Dec 7, 2021 159k views

2 votes

by Jaksa

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5 votes

Answer:

Step-by-step explanation:

calcium has 20 proteins

and given the mass number is 42.

mass number = protons + neutrons

42= 20+ n

n= 42-20

n= 22

Greg Michalec answered Dec 11, 2021

7.5k points

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