atomic number 1

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Noun atomic number 1 has 1 sense

hydrogen, H, atomic number 1 - 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
--₁ is a kind of chemical element, element; gas
--₁ is a substance of water, H2O
--₁ has particulars: tritium

atomic energy commission atomic explosion atomic fission atomic mass atomic mass of lithium atomic mass unit atomic nucleus atomic number atomic number 1 atomic number 2 atomic number 3 atomic number 4 atomic number 5 atomic number 6 atomic number 7 atomic number 8 atomic number 9

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