Question

The element with the atomic number of 15 has an atomic mass of 30, how many neutrons are found in this atom?

Answer 1

To determine the number of neutrons in an atom, you can subtract the atomic number from the atomic mass. In this case, the element has an atomic number of 15 and an atomic mass of 30.

Number of neutrons = Atomic mass - Atomic number Number of neutrons = 30 - 15 Number of neutrons = 15

Therefore, there are 15 neutrons in this atom.