Why does H+ ion always get associated with other atoms or molecules?
Loss of an electron from hydrogen atom results in a nucleus of very small size as compared to other atoms or ions.
H+ ion has exceptionally small size, so it can not exist freely.
Sodium hexametaphosphate is called calgon. Its molecular formula is (NaPO3)6 or Na6P6O18.
The addition of Calgon to hard water causes the calcium and magnesium ions of hard water to displace sodium ions from the anion of Calgon. This results in the removal of calcium and magnesium ions from hard water in the form of a complex with Calgon. The water is softened and sodium ions are released into water.
Electron precise hydride is the type of hydride in which the number of electrons present is equal to the number of electron required (octet or duplet). For example- CH4
CH4 has no lone pair of electron or vacant orbital so it is an electron precise hydride.
There are three isotopes of hydrogen namely, protium 1H1, deuterium 1H2 or D and lastly tritium 1H3 or T.
Out of these three isotopes of hydrogen, only tritium is radioactive in nature which emits low energy b particles. As the electronic configuration of isotopes is same, they all have similar chemical properties. But they have a difference in their rates of reaction, this happens because of the different bond disassociation enthalpies.