Jjshortmuffin04
Jjshortmuffin04 Jjshortmuffin04
  • 22-10-2020
  • Chemistry
contestada

What is the mass number of a cobalt atom that has 27 protons and
30 neutrons?

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Аноним Аноним
  • 22-10-2020

Answer:

all u need to do is this 27 + 30 = 57.

Explanation:

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god1630 god1630
  • 22-10-2020
Mass number is 57 since you add the 27 protons and the 30 neutrons
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