Sódíọ̀mù

(Àtúnjúwe láti Sodiomu)

Sódíọ̀mù jẹ́ ẹ́límẹ̀ntì kẹ́míkà kan tó ní àmí-ìdámọ̀ Na (láti Látìnì: natrium) lórí tábìlì ìdásìkò àwọn ẹ́límẹ̀ntì àti nọ́mbà átọ̀mù 11. O je metali riro, alawo fadaka funfun to untete sedarapo, beesini o je ikan ninu awon metali alkali; Isotopu re nikan to fesemule ni 23Na. Metali yi ko da wa fun ra ara re nikan ni idaye, sugbon be o wa ni adapo; o koko je pipinsoto latowo Humphry Davy ni 1807 pelu elektrolisisi haidroksidi sodiumu. Sodiomu ni elimenti ikefa to gbale julo ninu ipele-igbele Aye, o si wa ninu opo awon alumoni bi feldspar, sodalaiti ati iyo okuta. Opo awon iyo sodiomu ni won je yiyo somi daada, be sini sodiomu won ti je yiyo jade latowo omi to fi je pe kloridi ati sodiomu ni awon elimenti to wopo ni wuwo ninu awon omi okun Ile-Aye.

Sódíọ̀mù, 11Na
Sódíọ̀mù
Ìhànsójúsilvery white metallic
Ìwúwo átọ̀mù Ar, std(Na)22.98976928(2)[1]
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
nẹ́ọ̀nùsódíọ̀mùmagnésíọ̀mù
Nọ́mbà átọ̀mù (Z)11
Ẹgbẹ́group 1: H and alkali metals
Àyèàyè 3
Àdìpọ̀Àdìpọ̀-s
Ẹ̀ka ẹ́límẹ́ntì  Alkali metal
Ìtò ẹ̀lẹ́ktrọ́nù[Ne] 3s1
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2,8,1
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́370.87 K ​(97.72 °C, ​207.9 °F)
Ígbà ìhó1156 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 fusion2.60 kJ/mol
Heat of 97.42 kJ/mol
Molar heat capacity28.230 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
ElectronegativityPauling scale: 0.93
energies
Atomic radiusempirical: 186 pm
Covalent radius166±9 pm
Van der Waals radius227 pm
Color lines in a spectral range
Color lines in a spectral range
Spectral lines of sódíọ̀mù
Other properties
Natural occurrenceprimordial
Crystal structure ​(bcc)
Body-centered cubic crystal structure for sódíọ̀mù
Speed of sound thin rod3200 m/s (at 20 °C)
Thermal expansion71 µm/(m·K) (at 25 °C)
Thermal conductivity142 W/(m·K)
Electrical resistivity47.7 n Ω·m (at 20 °C)
Magnetic orderingparamagnetic
Young's modulus10 GPa
Shear modulus3.3 GPa
Bulk modulus6.3 GPa
Mohs hardness0.5
Brinell hardness0.69 MPa
CAS Number7440-23-5
History
DiscoveryHumphry Davy (1807)
First isolationHumphry Davy (1807)
Main isotopes of sódíọ̀mù
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct

Àdàkọ:Infobox element/isotopes decay3 (2 2 1)

23Na 100% 23Na is stable with 12 neutrons
Àdàkọ:Category-inline
| references


  1. Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305.