hydrogen

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English[edit]

Chemical element
H Next: helium (He)

Etymology[edit]

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

Pronunciation[edit]

Noun[edit]

hydrogen (countable and uncountable, plural hydrogens)

  1. The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.00794.
    1. An atom of the element.
  2. Molecular hydrogen (H2), a colourless, odourless and flammable gas at room temperature.
    1. A molecule of this molecular species
  3. 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.
  4. A sample of the element/molecule.

Synonyms[edit]

element
molecule

Hyponyms[edit]

isotopes
molecule

Derived terms[edit]

Related terms[edit]

Descendants[edit]

  • Burmese: ဟိုက်ဒရိုဂျင် (huikda.ruigyang)

Translations[edit]

See also[edit]

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, 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[edit]

Further reading[edit]

Danish[edit]

Noun[edit]

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

  1. hydrogen
    Synonym: brint

Norwegian Bokmål[edit]

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

Noun[edit]

hydrogen n (definite singular hydrogenet) (uncountable)

  1. hydrogen (chemical element, symbol H)

Derived terms[edit]

Norwegian Nynorsk[edit]

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

Noun[edit]

hydrogen n (definite singular hydrogenet) (uncountable)

  1. hydrogen (chemical element, symbol H)

Derived terms[edit]

Welsh[edit]

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

Etymology[edit]

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

Pronunciation[edit]

Noun[edit]

hydrogen m (uncountable, not mutable)

  1. hydrogen
    Synonyms: ulai, ulnwy

Derived terms[edit]

Further reading[edit]

  • 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