Which of the following statements is true about the valency of hydrogen?

The valency of an atom refers to its ability to combine with other atoms through chemical bonding. In the case of hydrogen, it has a valency of 1, meaning it can either gain or lose one electron during chemical reactions. When hydrogen gains an electron, it forms a negative ion (H-), also known as a hydride ion. Conversely, when hydrogen loses its electron, it forms a positive ion (H+), also known as a proton. This ability to either gain or lose an electron makes hydrogen versatile in its bonding behavior, allowing it to participate in various chemical reactions and form numerous compounds with other elements.