Question

If the atomic number of an element is six and the atomic mass is 15, how many neutrons does it have?
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1 point
6 Neutrons
9 Neutrons
15 Neutrons

Answer 1

To find the number of neutrons, subtract the atomic number from the atomic mass. In this case, the atomic number is 6 and the atomic mass is 15. Therefore, the number of neutrons is 15 - 6 = 9 neutrons.