Question

The set which represents the isotope, isobar and isotone respectively is.

• A. $\left( {}_{1}^{2}H,_{1}^{3}H \right),\left( {}_{79}^{197}Au,_{80}^{198}Hg \right)$ and $\left( {}_{2}^{3}He,_{1}^{2}H \right)$
• B. $\left( {}_{2}^{3}H,_{1}^{1}H \right),\left( {}_{79}^{197}Au,_{80}^{198}Hg \right)$ and $\left( {}_{1}^{1}He,_{1}^{3}H \right)$
• C. $\left( {}_{2}^{3}He,_{1}^{3}H \right),\left( {}_{1}^{2}H,_{1}^{3}H \right)$ and $\left( {}_{79}^{197}Au,_{80}^{198}Hg \right)$
• D. $\left( {}_{1}^{2}H,_{1}^{3}H \right),\left( {}_{2}^{3}He,_{1}^{3}H \right)$ and $\left( {}_{79}^{179}Au,_{80}^{198}Hg \right)$

Answer 1

Answer: (D)

$\left( {}_{1}^{2}H,_{1}^{3}H \right),\left( {}_{2}^{3}He,_{1}^{3}H \right)$ and $\left( {}_{79}^{179}Au,_{80}^{198}Hg \right)$

Answer 2

: Nuclides with same atomic number Z but different mass number A are known as isotopes

Nuclides with same mass number A but different atomic number Z are known as isobars.

Nuclides with same neutron number $N = (A - Z)$ but different atomic number Z are known as isotones.