What Are The Chemical Properties Of A Hydrogen Atom?
Hydrogen is a non-metal element of periodic table and its symbol is H. Hydrogen is gas at room temperature and its atomic number is one. The atomic mass of a hydrogen atom is 1.007825 a.m.u (atomic mass unit). Hydrogen atom has only one electron and one proton. No neutron is present in a hydrogen atom. Hydrogen atom needs only one electron to complete its outer most orbit or to become stable. According to the Pauling’s scale, the electronegativity of hydrogen atom is 2.1. The density of hydrogen is 8.99 x 10-5 grams per centimeter cube. The melting and boiling points of hydrogen gas are -259.2 degree Celsius and -252.8 degree Celsius respectively. The atomic radius of hydrogen is approximately 0.12 nanometer. Hydrogen atom has only one electron so, its electronic configuration is 1s1. The first ionization of energy of hydrogen is 1311 kilo joule per mole. Moreover, hydrogen has three isotopes.
