Wiktionary

hydrogen

English

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Chemical element
H Next: helium (He)

Etymology

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From French hydrogène, coined by Louis-Bernard Guyton de Morveau and Antoine Lavoisier, from Ancient Greek ὕδωρ (húdōr, “water”) + γεννάω (gennáō, “I bring forth”). Corresponding to hydro- +‎ -gen.

Pronunciation

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Noun

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hydrogen (countable and uncountable, plural hydrogens)

  2. The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
    • 1997, Ian McEwan, Enduring Love, Vintage (1998), page 3:
      It was an enormous balloon filled with helium, that elemental gas forged from hydrogen in the nuclear furnace of the stars.
    • For more quotations using this term, see Citations:hydrogen.
    1. An atom of the element.
  3. Molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature.
    1. A molecule of this molecular species
  4. The isotope hydrogen-1 (also symbol H), contrasting with deuterium and tritium
    Synonym: protium
    • Hydrogen is generally considered to be electronically the same as deuterium. […] In both PdHx and PdDx […] a resistivity maximum is found near 50 K.
  5. A sample of the element/molecule.

Synonyms

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element
molecule

Hyponyms

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isotopes
molecule

Derived terms

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Descendants

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  • → Burmese: ဟိုက်ဒရိုဂျင် (huikda.ruigyang)

Translations

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See also

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Periodic table of elements in English · periodic table of elements (layout · text)
Period
Group
 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 1   H
hydrogen 		Color of the number (state of matter at STP): liquid, gas, solid, synthetic, not yet been discovered 2   He
helium
2 3   Li
lithium 		4   Be
beryllium 		Blocks: d-block f-block p-block s-block 5   B
boron 		6   C
carbon 		7   N
nitrogen 		8   O
oxygen 		9   F
fluorine 		10   Ne
neon
3 11   Na
sodium 		12   Mg
magnesium 		13   Al
aluminum 		14   Si
silicon 		15   P
phosphorus 		16   S
sulfur 		17   Cl
chlorine 		18   Ar
argon
4 19   K
potassium 		20   Ca
calcium
21   Sc
scandium 		22   Ti
titanium 		23   V
vanadium 		24   Cr
chromium 		25   Mn
manganese 		26   Fe
iron 		27   Co
cobalt 		28   Ni
nickel 		29   Cu
copper 		30   Zn
zinc 		31   Ga
gallium 		32   Ge
germanium 		33   As
arsenic 		34   Se
selenium 		35   Br
bromine 		36   Kr
krypton
5 37   Rb
rubidium 		38   Sr
strontium
39   Y
yttrium 		40   Zr
zirconium 		41   Nb
niobium 		42   Mo
molybdenum 		43   Tc
technetium 		44   Ru
ruthenium 		45   Rh
rhodium 		46   Pd
palladium 		47   Ag
silver 		48   Cd
cadmium 		49   In
indium 		50   Sn
tin 		51   Sb
antimony 		52   Te
tellurium 		53   I
iodine 		54   Xe
xenon
6 55   Cs
cesium 		56   Ba
barium 		*
 71   Lu
lutetium 		72   Hf
hafnium 		73   Ta
tantalum 		74   W
tungsten 		75   Re
rhenium 		76   Os
osmium 		77   Ir
iridium 		78   Pt
platinum 		79   Au
gold 		80   Hg
mercury 		81   Tl
thallium 		82   Pb
lead 		83   Bi
bismuth 		84   Po
polonium 		85   At
astatine 		86   Rn
radon
7 87   Fr
francium 		88   Ra
radium 		**
 103   Lr
lawrencium 		104   Rf
rutherfordium 		105   Db
dubnium 		106   Sg
seaborgium 		107   Bh
bohrium 		108   Hs
hassium 		109   Mt
meitnerium 		110   Ds
darmstadtium 		111   Rg
roentgenium 		112   Cn
copernicium 		113   Nh
nihonium 		114   Fl
flerovium 		115   Mc
moscovium 		116   Lv
livermorium 		117   Ts
tennessine 		118   Og
oganesson

* lanthanides 57   La
lanthanum 		58   Ce
cerium 		59   Pr
praseodymium 		60   Nd
neodymium 		61   Pm
promethium 		62   Sm
samarium 		63   Eu
europium 		64   Gd
gadolinium 		65   Tb
terbium 		66   Dy
dysprosium 		67   Ho
holmium 		68   Er
erbium 		69   Tm
thulium 		70   Yb
ytterbium
** actinides 89   Ac
actinium 		90   Th
thorium 		91   Pa
protactinium 		92   U
uranium 		93   Np
neptunium 		94   Pu
plutonium 		95   Am
americium 		96   Cm
curium 		97   Bk
berkelium 		98   Cf
californium 		99   Es
einsteinium 		100   Fm
fermium 		101   Md
mendelevium 		102   No
nobelium

References

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Further reading

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Danish

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Danish Wikipedia has an article on:
Wikipedia da
Chemical element
H Next: helium (He)

Etymology

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From French hydrogène.

Noun

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hydrogen n (singular definite hydrogenet, not used in plural form)

  1. hydrogen
    Synonym: brint

Declension

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Declension of hydrogen
neuter
gender 		singular
indefinite definite
nominative hydrogen hydrogenet
genitive hydrogens hydrogenets

References

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Norwegian Bokmål

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Chemical element
H Next: helium (He)
 
Norwegian Wikipedia has an article on:
Wikipedia no

Noun

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hydrogen n (definite singular hydrogenet) (uncountable)

  1. hydrogen (chemical element, symbol H)

Derived terms

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Norwegian Nynorsk

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Chemical element
H Next: helium (He)
 
Norwegian Nynorsk Wikipedia has an article on:
Wikipedia nn

Noun

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hydrogen n (definite singular hydrogenet) (uncountable)

  1. hydrogen (chemical element, symbol H)

Derived terms

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Welsh

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Chemical element
H Next: heliwm (He)
 
Welsh Wikipedia has an article on:
Wikipedia cy

Etymology

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Borrowed from English hydrogen, from French hydrogène, from Ancient Greek ὕδωρ (húdōr, “water”) + γεννάω (gennáō, “I bring forth”).

Pronunciation

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Noun

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hydrogen m (uncountable, not mutable)

  1. hydrogen
    Synonyms: ulai, ulnwy

Derived terms

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Further reading

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  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “hydrogen”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
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