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zimovet [89]
3 years ago
8

What is the mass number of an atom with 6 protons and 7 neutrons

Chemistry
2 answers:
faltersainse [42]3 years ago
8 0
Hi, the answer is 13 , because the total of protons and neutrons together form the mass , in other words there are 6 protons and 7 neutrons , 6+7=13.
KiRa [710]3 years ago
6 0
Mass number is 12.01g What you do first to find is find how many protons it such as this atom has 6 so it going to be number 6 on the periodic table then find the mass
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