b,f,h are already balanced
If you are asking for the word for this definition it is a <span>attraction by the two nucluei</span>
Cation and an anion the differences in charge make them attracted to each other
Usually (ignoring transition metals, as they kinda get trickier), the element's valency can be found out by its group (column) number. Usually, we ignore the transition metal block while counting these columns, so Aluminium is in group 3, for example. Since Aluminium is in group 3, it has 3 valence electrons.
