Question

if any electron has atomic no. = 15 and atomic mass =31 so find the no. of electron,proton, neutron in its atom ?

Answer 1

Atomic number = 15

So number of proton =15

Number of electron = Number of proton
Number of electron =15

Now,

Number of neuton + number of proton = atomic mass

15 + number of neutron = 31

Number of neutron = 16