Other crossword clues for answer "HYDROGEN"HYDROGEN1 in a table settingElement number 1HMost abundant elementElement in waterLight gasRocket fuel componentLight elementLightest elementIt's always number oneFocus of scientific limelight.Typical univalent element.Lightest of all known substances.Element of vast power.Element potentially destructive.The lightest of all known substances.#1 on a tableOne on a certain tableFirst item on a certain table