Solution:
Number of neutrons in protium is zero (x).
Number of neutrons in deuterium is 1 (y).
Number of neutrons in tritium is 2 (z)
So, the sum of x, y and z is x + y+2=3
Hydrogen has three isotopes (A), (B) and C). If the number of neutron(s) in (A), (B) and (C) respectively, are (x), (y) and (z), the sum of (x), (y) and (z) is
Hydrogen has three isotopes (A), (B) and C). If the number of neutron(s) in (A), (B) and (C) respectively, are (x), (y) and (z), the sum of (x), (y) and (z) is
