Question

The sum of numbers of neutrons and protons in one of the isotopes of hydrogen is -:

A) 3
B) 4
C) 5
D)6

Answer 1

the sum of neutrons and protons in one of the isotope of hydrogen i.e. tritium is 3


2 neutrons and 1 proton


hope this helps

Answer 2

it's 3 because there are 2 neutrons and 1 protons