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nata0808 [166]
3 years ago
7

The atomic number of magnesium is 12. This means that its nucleus must contain

Physics
2 answers:
Lena [83]3 years ago
3 0
12 protons and 12 electrons

Marina86 [1]3 years ago
3 0
The atomic of magnesium is 12 this means that its nucleus 12 protons and no electrons are  not in the nucleus  
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