Question

Explain how you can determine the number of neutrons in the nucleus of an atom of any of the elements listed in the table.

Answer 1

Different explanations that lead to the same result

-You need to substract the number of protons from the mass number.

-Mass number - atomic number= number of protons

-Following this equation:

CARBON

atomic number= 6

mass number= 12

mass number= protons + neutrons

12= 6 + x

x= 12-6

x= 6