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2 years ago

15

A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is

2 answers:

Roman55 [17]2 years ago

7 0

Answer:

The mass number is 56

Explanation:

You just add the number of protons and neutrons to find the mass number of a atom.

harina [27]2 years ago

3 0

The answer is 56 hope this helps

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