Natrio
11
Na
Grupo
1
Perio
3
Bloko
s
Protonoj
Elektronoj
Neŭtronoj
11
11
12
Ĝeneralaj Propraĵoj
Atoma Nombro
11
Atommaso
22,98976928
Amasa Nombro
23
Kategorio
Alkalaj metaloj
Koloro
Arĝento
Radioaktiva
Ne
De la Angla vorto soda, sodo; Mezepoka Latina vorto sodanum, kapdolora rimedo
Kristala Strukturo
Korpo Centrita Kubo
Historio
The chemical abbreviation for sodium was first published by Jöns Jakob Berzelius in his system of atomic symbols.
It is a contraction of the element's new Latin name natrium, which refers to the Egyptian natron, a natural mineral salt primarily made of hydrated sodium carbonate.
In 1807, Sir Humphry Davy isolated sodium for the first time by electrolysis of dried sodium hydroxide, which had been very slightly moistened.
It is a contraction of the element's new Latin name natrium, which refers to the Egyptian natron, a natural mineral salt primarily made of hydrated sodium carbonate.
In 1807, Sir Humphry Davy isolated sodium for the first time by electrolysis of dried sodium hydroxide, which had been very slightly moistened.
Elektronoj per ŝelo
2, 8, 1
Elektrona Agordo
[Ne] 3s1
Sodium burns in air with a brilliant yellow flame
Fizikaj Propraĵoj
Fazo
Solido
Denso
0,971 g/cm3
Fandpunkto
370,87 K | 97,72 °C | 207,9 °F
Bolpunkto
1156,15 K | 883 °C | 1621,4 °F
Varmo de Fuzio
2,6 kJ/mol
Varmo de Vaporiĝo
97,7 kJ/mol
Specifa Varmo Kapacito
1,228 J/g·K
Krusta Abundo
2,3%
Universa Abundo
0,002%
CAS Nombro
7440-23-5
PubChem Kunmetita Identiga Nombro
5360545
Atomaj Propraĵoj
Atoma Radiuso
186 pm
Kovalenta Radiuso
166 pm
Elektronegativeco
0,93 (Pauling-skalo)
Potencialo de jonigo
5,1391 eV
Atoma Volumo
23,7 cm3/mol
Termika Kondukto
1,41 W/cm·K
Oksidaj Ŝtatoj
-1, 1
Aplikoj
Metallic sodium is vital in the manufacture of esters and in the preparation of organic compounds.
Sodium vapor lamps are often used for street lighting in cities.
Liquid sodium is used as a heat transfer fluid in some fast reactors.
Sodium is also used as an alloying metal, an anti-scaling agent, and as a reducing agent for metals when other materials are ineffective.
Sodium vapor lamps are often used for street lighting in cities.
Liquid sodium is used as a heat transfer fluid in some fast reactors.
Sodium is also used as an alloying metal, an anti-scaling agent, and as a reducing agent for metals when other materials are ineffective.
Sodium metal should be handled with great care as it cannot be maintained in an inert atmosphere
Izotopoj
Stabilaj Izotopoj
23NaMalstabilaj Isotopoj
18Na, 19Na, 20Na, 21Na, 22Na, 24Na, 25Na, 26Na, 27Na, 28Na, 29Na, 30Na, 31Na, 32Na, 33Na, 34Na, 35Na, 36Na, 37Na