Question

Number of neutrons in the three isotopes of hydrogen (h,d,t) respectively is a)0,1,2 b)1,2,3 c)1,3,2 d)0,1,1

Answer 1

Answer:

1

H,

1

2

H(D),

1

3

H(T)

No. of neutrons Z−A

In

1

1

H, number of neutrons =1−1=0

In

1

2

H(D), number of neutrons =2−1−1

In

1

3

H(T), the number of neutrons =3−1=2

Total no. of neutrons =(1−1)+(2−1)+(3−1)

=0+1+2

=3