The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are :

Question

The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are : (A) 2 and 0 (B) 3 and 2 (C) 3 and 1 (D) 2 and 1

Tardigrade Admin · Accepted Answer

Total number of isotopes of hydrogen is 3 Longrightarrow 21 H , 12 H or 13 D , 13 H or 13 T and only 13 H or 13 T is a radioactive element.

Q. The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are :

2 and 0

3 and 2

3 and 1

2 and 1

Total number of isotopes of hydrogen is 3
$⟹_{2}^{1} H,_{1}^{2} H$ or $_{1}^{3} D,_{1}^{3} H$ or $_{1}^{3} T$
and only $_{1}^{3} H$ or $_{1}^{3} T$ is a radioactive element.

Q. The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are :

2 and 0

3 and 2

3 and 1

2 and 1

Total number of isotopes of hydrogen is 3 ⟹21​H,12​H or 13​D,13​H or 13​T and only 13​H or 13​T is a radioactive element.

Total number of isotopes of hydrogen is 3
$⟹_{2}^{1} H,_{1}^{2} H$ or $_{1}^{3} D,_{1}^{3} H$ or $_{1}^{3} T$
and only $_{1}^{3} H$ or $_{1}^{3} T$ is a radioactive element.