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

asked Dec 22, 2021 104k views

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

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7 votes

Mass number is 57 since you add the 27 protons and the 30 neutrons

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4 votes

Answer:

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

Step-by-step explanation:

Bill Brooks answered Dec 25, 2021

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