They are compounds formed by a metal and hydrogen, in which
the hydrogen has an oxidation number –1.
The hydrides of groups 1 and 2 are more ionic than
covalent. The hydrides of groups 13 and 14 are more covalent than ionic. But
they have the same name, except boron hydride which is named as H + nometal
In Formulae you have an exercise to write the names of these substances
and to check your results. You also have the answer to the exercise.
In Names you have an exercise to write the formulae for these substances
and to check your results. You have to introduce the formulae without
subscripts, for example for water = H2O. You also have the answer to the