(Q556)

English

hydrogen

chemical element with symbol H and atomic number 1; lightest and most abundant substance in the universe

  • H
  • element 1

Statements

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Hydrogen discharge tube.jpg
3,000 × 1,000; 274 KB
Tub de descàrrega d'hidrogen (espectre) (Catalan)
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Elektronskal 1.svg
500 × 500; 1 KB
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Hydrogen balloon explosion 2.webm
22 s, 1,920 × 1,080; 9.38 MB
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1.008±0.0002 dalton
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Standard atomic weights of the elements 2021 (IUPAC Technical Report) (English)
6 May 2022
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2.2
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54 picometre
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Hydrogen
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Hydrogen
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Identifiers

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553.92
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546.21
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1 reference
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IDROGENO
Felice DE CARLI
Giulio NATTA
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14664612-n
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