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kherson [118]
3 years ago
6

Protons: 3 Neutrons: 4 Electrons: 3 What is the mass number for the element above? A. 10 B. 7 C. 6 D. 4

Biology
1 answer:
prisoha [69]3 years ago
3 0
B. 7
the atomic mass is protons + neutrons.
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