Question

If Z is an atom's atomic number and A is its atomic mass, the atom's neutrons are expressed as: A + Z Z - A A - Z Z = A

Answer 1

Number of neutrons in nucleus = A-Z

Answer 2

Answer:

N = A - Z

Explanation:

As we know that total number of nucleons is given by sum of number of neutrons and protons.

This is known as total nucleons.

So representation of atom is given by

$_z^AX$

here

z = number of protons in atom

A = total number of neutrons and protons

So here if we wish to find number of neutrons then we have

N + Z = A

N = A - Z