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Alex787 [66]
3 years ago
13

How many neutrons does an element have if its atomic number is 55 and its mass number is 150?

Chemistry
2 answers:
Lynna [10]3 years ago
8 0
With an atomic number of 55, that means there are 55 protons. Because electrons do not count towards atomic weight, the element would have 150-55 neutrons. So, 95 neutrons.
Molodets [167]3 years ago
8 0
95 neutrons hope this helps
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