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murzikaleks [220]
4 years ago
11

How many neutrons does an element have if its atomic number is 40 and its mass number is 156?

Advanced Placement (AP)
1 answer:
pantera1 [17]4 years ago
5 0

116 neutrons.

To find the neutrons of an element, you simply have to subtract the mass number and atomic number. 156 - 40 is 116.

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