Two ways hydrogen combines with other elements?

Hydrogen combines with other elements primarily through covalent bonding and ionic bonding. In covalent bonding, hydrogen shares its single electron with another element, forming molecules such as water (H₂O) and methane (CH₄). In ionic bonding, hydrogen can donate its electron to form a cation (H⁺), which can then bond with anions, as seen in compounds like hydrochloric acid (HCl). These bonding methods allow hydrogen to form a wide variety of chemical compounds.