chromium

Details

Instance of

chemical element, lithophile element

Subclass of

allergen, simple substance

Part of

period 4, group 6

Material

chromite

associated hazard

chromium exposure, chromium toxicity

atomic number

24

boiling point

4788, 2671.9, 2945

canonical SMILES

[Cr]

chemical formula

Cr

density

7.14

described by source

Armenian Soviet Encyclopedia, Brockhaus and Efron Encyclopedic Dictionary, Small Brockhaus and Efron Encyclopedic Dictionary, Chromium, Encyclopædia Britannica 11th edition, Enciclopedia universal ilustrada europeo-americana (1908-1930)

different from

Krum, Chromium, Chromium

discoverer or inventor

Louis Nicolas Vauquelin

electron configuration

[Ar] 3d⁵ 4s¹

electronegativity

1.66

element symbol

Cr

found in taxon

Foeniculum vulgare, Cashew, Apium graveolens, Baccharis, Cistus ladanifer, Coreopsis tinctoria, Coriandrum sativum, Cytisus scoparius, Erica arborea, Erica umbellata, Centaurium erythraea, Geranium robertianum

has effect

chromium exposure

immediately dangerous to life or health

250

ionic radius

0.73, 0.62, 0.41, 0.55, 0.26, 0.44

manufacturer

Pfizer

mass

51.9961

melting point

3465, 1907, 1856.9

named after

color field

NIOSH Pocket Guide ID

0141

oxidation state

-2, -1, 1, 2, 3, 4, 5, 6

subject has role

trace metal

time of discovery or invention

1797

time-weighted average exposure limit

0.5

topic's main category

Category:Chromium

Unicode character

鉻

vapor pressure

0

Connected on Wikidata

Authority files