Neutron determination ?

[1123581321]

I was wondering how you determine the number of neutrons in an atom

[swansont]

[math]_Z^AX[/math] If you know Z and A, the number of neutrons is A-Z. A is the approximate mass in atomic units, since each nucleon contributes about 1 amu to the mass, and Z is determined by the element, so you can look that up.

[1123581321]

thanks