it is also the lightest element isotopes are atoms of the same element with different numbers of neutrons in ancient times the elements referred to fire earth water and air helium is the second most common element in the universe but is very rare on the earth
Featherweight is a weight class in the combat sports of boxing, kickboxing, mixed martial arts and Greco-Roman wrestling.
Bantamweight is a weight class in combat sports. 1  For boxing the range is above 115 pounds (52.2 kg) and up to 118 pounds (53.5 kg). 2  In kickboxing, a bantamweight fighter generally weighs between 53 kg (116 lb) and 55 kg (120 lb). 3  In MMA, bantamweight is 126â135 pounds (57.2â61.2 kg).