sodium English · revision 15330

+ {{infobox|confidence=established|formation=coinage|attested=1807}}

+

+ ==Pronunciation==

+ * IPA: /ˈsoʊ.di.əm/; /ˈsəʊ.di.əm/ ''(UK)''^(Wiktionary)

+

+ ==Etymology==

+ It is [[la-new|sodium]], coined by the English chemist Sir Humphry Davy from [[soda]] and [[-ium]],^(Barnhart 1988)^(Etymonline)^(MWU 2024) because he isolated the element from caustic soda (sodium hydroxide).^(Barnhart 1988)^(Etymonline)

+

+ ==Earliest recorded meaning==

+ The alkaline metal element: 1807, the year Davy isolated it.^(Barnhart 1988)^(OED 1989)^(Etymonline)

+

+ ==Semantic evolution==

+ Its chemical symbol, Na, is from [[la-new|natrium]], a name proposed by Berzelius and coined from [[natron]], a kind of soda.^(Etymonline) Sodium compounds are named from 1857,^(OED 1989) and references to the intense yellow light of sodium lamps date from 1888.^(OED 1989)

+

+ ==Timeline==

+ * 1807 – sodium.^(Barnhart 1988)^(OED 1989)

+ * 1857 – in names of compounds.^(OED 1989)

+ * 1888 – sodium light.^(OED 1989)

+

+ ==Modern meaning==

+ ===Noun===

+ # A soft, silvery-white, highly reactive [[metal|alt=metallic]] [[chemical element]] of the [[alkali metal]] group, found especially in common [[salt]]; symbol Na, atomic number 11.^(AHD)^(Collins 2023)

+

+ ==Related words==

+ * [[soda]]

+ * [[potassium]]

+ * [[natron]]

+ * [[sodium chloride]]

+

+ ==References==

+ {{reflist}}