How many electrons can a hydrogen atom bond with to achieve a stable outer shell?

A hydrogen atom has only one electron in its outer shell (1s orbital). To achieve a stable outer shell, a hydrogen atom needs to bond with one more electron, which it can acquire through chemical bonding with other atoms. In the case of hydrogen, it typically forms a single covalent bond with another atom, sharing one electron with it. This allows hydrogen to have a stable outer shell resembling the electronic configuration of the noble gas helium (He), which has two electrons in its outer shell.