Àdàkọ:Infobox sódíọ̀mù

Sódíọ̀mù, ₁₁Na

Sódíọ̀mù
Ìhànsójú	silvery white metallic
Ìwúwo átọ̀mù Ar, std(Na)	22.98976928(2)
Sódíọ̀mù ní orí tábìlì àyè
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson Li ↑ Na ↓ K nẹ́ọ̀nù ← sódíọ̀mù → magnésíọ̀mù
Nọ́mbà átọ̀mù (Z)	11
Ẹgbẹ́	group 1: H and alkali metals
Àyè	àyè 3
Àdìpọ̀	Àdìpọ̀-s
Ẹ̀ka ẹ́límẹ́ntì	Alkali metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Ne] 3s1
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2,8,1
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	370.87 K ​(97.72 °C, ​207.9 °F)
Ígbà ìhó	1156 K ​(883 °C, ​1621 °F)
Kíki (near r.t.)	0.968 g/cm3
when liquid (at m.p.)	0.927 g/cm3
Critical point	(extrapolated) 2573 K, 35 MPa
Heat of fusion	2.60 kJ/mol
Heat of	97.42 kJ/mol
Molar heat capacity	28.230 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 554 617 697 802 946 1153
Atomic properties
Oxidation states	−1, +1 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 0.93
energies	(more)
Atomic radius	empirical: 186 pm
Covalent radius	166±9 pm
Van der Waals radius	227 pm
Color lines in a spectral range Spectral lines of sódíọ̀mù
Other properties
Natural occurrence	primordial
Crystal structure	​(bcc)
Speed of sound thin rod	3200 m/s (at 20 °C)
Thermal expansion	71 µm/(m·K) (at 25 °C)
Thermal conductivity	142 W/(m·K)
Electrical resistivity	47.7 n Ω·m (at 20 °C)
Magnetic ordering	paramagnetic
Young's modulus	10 GPa
Shear modulus	3.3 GPa
Bulk modulus	6.3 GPa
Mohs hardness	0.5
Brinell hardness	0.69 MPa
CAS Number	7440-23-5
History
Discovery	Humphry Davy (1807)
First isolation	Humphry Davy (1807)
Main isotopes of sódíọ̀mù
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 23Na 100% 23Na is stable with 12 neutrons

References

This reference list does not appear in the article.