Chemistry, 23.11.2019 10:31 mommer2019

The mass number of a chromium atom is 52 and it has 24 protons. how many neutrons does this atom have?
1. 24
2. 28
3. 76
4. 80

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The mass number of a chromium atom is 52 and it has 24 protons. how many neutrons does this atom hav...