jika ion x3+ mempunyai electron 10 dan neutron 14 tentukan nomor massa nya!

=> e = Z- q
=> 10 = Z - 3
=> Z = 10 + 3
=> Z = 13

=> n = A-Z
=> 14 = A - 13
=> A = 14 + 13
=> A = 27
ket : A = Nomor Massa
Z= Nomor Atom
n = neutron