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 (plural bantamweights) 1  A weight in boxing and other sports, intermediate between flyweight and featherweight. 2  A boxer or other competitor of this weight.