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hydrogen

From Wiktionary, the free dictionary

English

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Chemical element
HNext:helium (He)

Alternative forms

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Etymology

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FromFrenchhydrogène, coined byLouis-Bernard Guyton de Morveau andAntoine Lavoisier, fromAncient Greekὕδωρ(húdōr,“water”) +γεννάω(gennáō,“I bring forth”). Corresponding tohydro- +‎-gen.

Pronunciation

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Noun

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hydrogen (countable anduncountable,pluralhydrogens)

  2. Thelightestchemicalelement (symbolH), with anatomic number of 1 andatomic weight of 1.008.
    Alternative form:H(symbol)
    • 1997,Ian McEwan,Enduring Love, Vintage (1998), page 3:
      It was an enormous balloon filled with helium, that elemental gas forged fromhydrogen in the nuclear furnace of the stars.
    • For more quotations using this term, seeCitations:hydrogen.
    1. An atom of the element.
  4. Molecular hydrogen (H2), acolourless,odourless andflammablegas at room temperature.
    1. A molecule of this molecular species
  6. The isotope hydrogen-1 (protium) (symbol H or1H), contrasting withdeuterium andtritium
    • Hydrogen is generally considered to be electronically the same as deuterium. […] In both PdHx and PdDx […] a resistivity maximum is found near 50 K.
  7. 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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Related terms

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Descendants

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Translations

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chemical element
molecular hydrogen
atom of hydrogen

See also

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Periodic table of elements in English ·periodic table ofelements(layout ·text)
Period
Group
123456789101112131415161718
11   H
hydrogen		Color of the number (state of matter atSTP):liquid,gas,solid,synthetic,not yet been discovered2   He
helium
23   Li
lithium		4   Be
beryllium		Blocks:d-blockf-blockp-blocks-block5   B
boron		6   C
carbon		7   N
nitrogen		8   O
oxygen		9   F
fluorine		10   Ne
neon
311   Na
sodium		12   Mg
magnesium		13   Al
aluminum		14   Si
silicon		15   P
phosphorus		16   S
sulfur		17   Cl
chlorine		18   Ar
argon
419   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
537   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
655   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
787   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

*lanthanides57   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
**actinides89   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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DanishWikipedia has an article on:
Wikipediada
Chemical element
HNext:helium (He)

Etymology

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FromFrenchhydrogène.

Noun

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hydrogen n (singular definitehydrogenet,not used in plural form)

  1. hydrogen
    Synonym:brint

Declension

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Declension ofhydrogen
neuter
gender		singular
indefinitedefinite
nominativehydrogenhydrogenet
genitivehydrogenshydrogenets

References

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Norwegian Bokmål

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Chemical element
HNext:helium (He)
NorwegianWikipedia has an article on:
Wikipediano

Noun

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hydrogen n (definite singularhydrogenet)(uncountable)

  1. hydrogen (chemical element, symbolH)

Derived terms

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Norwegian Nynorsk

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Chemical element
HNext:helium (He)
Norwegian NynorskWikipedia has an article on:
Wikipediann

Noun

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hydrogen n (definite singularhydrogenet)(uncountable)

  1. hydrogen (chemical element, symbolH)

Derived terms

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Welsh

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Chemical element
HNext:heliwm (He)
WelshWikipedia has an article on:
Wikipediacy

Etymology

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Borrowed fromEnglishhydrogen, fromFrenchhydrogène, fromAncient Greekὕδωρ(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”, inGeiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
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