The ratio of number of nucleons for the isotopes of hydrogen, $11H:21H:31H$ is

Q. Hydrogen has three isotopes written as:
${}_1{}^1\mathrm{H},{}_1{}^2\mathrm{H},{}_1{}^3\mathrm{H}$
Explain Why:
(a) These isotopes have almost identical chemical properties.
(b) They are electrically neutral.

Q. Explain why ${}_1{}^3\mathrm{H}$ and ${}_2{}^3\mathrm{H}$ are not considered isotopes.

Q. Find the ratio of nucleons for the isotopes of hydrogen, ${{}^1}_{1}H:{{}^2}_{1}H:{{}^3}_{1}H.$

Q. $11H,21Hand31H$ are the isobars of hydrogen.

Q. The isotopes of Hydrogen H are ${}_{\text{1}}^{\text{1}}\text{H},{}_{\text{1}}^{\text{2}}\text{H}$ and ${}_{\text{1}}^{\text{3}}\text{H}$ respectively. What is the ratio of number of nucleons in these respective isotopes?