In 
, determine the number of
(i) neutrons
(ii) number of protons
(i) Neutrons in 
= 20 – 10 = 10
(ii) Number of protons = 10
17
In , determine the number of
(i) neutrons
(ii) number of protons
(i) Neutrons in = 20 – 10 = 10
(ii) Number of protons = 10