A table in which the chemical elements are arranged in order of increasing atomic number. Elements with similar properties are arranged in the same column (called a group), and elements with the same number of electron shells are arranged in the same row (called a period).
Any of the speech sounds that this letter represents, as, in English, the (h) of hat
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
Find another word for hydrogen. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for hydrogen, like: periodic-table, h and atomic number 1.