ᱥᱚᱰᱤᱭᱟᱢ

ᱥᱚᱰᱤᱭᱟᱢ,  ₁₁Na

ᱥᱚᱰᱤᱭᱟᱢ
Appearance	silvery white metallic
Standard atomic weight Ar, std(Na)	7001229897692800000♠22.98976928(2)
ᱥᱚᱰᱤᱭᱟᱢ in the periodic table
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 ᱱᱤᱭᱟᱹᱱ ← ᱥᱚᱰᱤᱭᱟᱢ → magnesium
Atomic number (Z)	11
Group	group n/a
Period	[[Period {{{period}}} element|period {{{period}}}]]
Block	[[{{{block}}}-block]]
Element category	Alkali metal
Electron configuration	[Ne] 3s1
Electrons per shell	2, 8, 1
Physical properties
Phase at STP	solid
Melting point	370.944 K ​(97.794 °C, ​208.029 °F)
Boiling point	1156.090 K ​(882.940 °C, ​1621.292 °F)
Density when liquid (at m.p.)	0.927 g/cm3
Critical point	2573 K, 35 MPa (extrapolated)
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 (a strongly basic oxide)
Electronegativity	Pauling scale: 0.93
energies	1st: 495.8 kJ/mol 2nd: 4562 kJ/mol 3rd: 6910.3 kJ/mol (more)
Atomic radius	empirical: 186 pm
Covalent radius	166±9 pm
Van der Waals radius	227 pm
Spectral lines of ᱥᱚᱰᱤᱭᱟᱢ
Other properties
Natural occurrence	primordial
Crystal structure	​(bcc)
Speed of sound thin rod	3200 m/s (at 20 °C)
Thermal conductivity	142 W/(m·K)
Electrical resistivity	47.7 nΩ·m (at 20 °C)
Magnetic ordering	paramagnetic
Magnetic susceptibility	6995160000000000000♠+16.0×10−6 cm3/mol (298 K)
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 and first isolation	Humphry Davy (1807)
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct

ᱥᱚᱰᱤᱭᱟᱢ ᱫᱚ ᱢᱤᱫ ᱠᱮᱢᱤᱠᱟᱞ ᱮᱞᱮᱢᱮᱱᱴ ᱠᱟᱱᱟ ᱡᱟᱦᱟᱸ ᱨᱮᱱᱟᱜ ᱟᱴᱚᱢᱤᱠ ᱮᱞ ᱑᱑ ᱠᱟᱱᱟ ᱾ ᱱᱚᱶᱟ ᱨᱮᱱᱟᱜ ᱪᱤᱱᱦᱟᱹ ᱫᱚ Na (ᱱᱟᱴᱨᱤᱭᱚᱢ ᱧᱩᱛᱩᱢ ᱠᱷᱚᱱ) ᱠᱟᱱᱟ ᱾ ᱱᱚᱶᱟ ᱫᱚ ᱢᱤᱫ ᱟᱞᱠᱟᱞᱤ ᱢᱮᱴᱟᱞ ᱠᱟᱱᱟ ᱾ ᱢᱮᱱᱠᱷᱟᱱ ᱱᱚᱴᱨᱤᱭᱚᱢ ᱨᱮ ᱟᱹᱰᱤ ᱜᱟᱱ ᱟᱭᱥᱳᱴᱳᱯ ᱢᱮᱱᱟᱜᱼᱟ, ᱢᱮᱱᱠᱷᱟᱱ ᱰᱷᱮᱨ ᱛᱮᱫ ᱫᱚ ᱠᱚᱢ ᱚᱠᱛᱚ ᱨᱮ ᱵᱚᱫᱚᱞᱟ ᱾ ᱱᱚᱶᱟ ᱠᱷᱟᱹᱛᱤᱨ ᱛᱮ, ᱡᱚᱛᱚ ᱱᱟᱴᱨᱤᱭᱚᱢ ᱨᱮ ᱱᱟᱴᱨᱤᱭᱚᱢ ᱨᱮᱱᱟᱜ ᱑᱑Na᱒᱓ ᱟᱭᱤᱥᱳᱴᱚᱯ ᱢᱮᱱᱟᱜᱼᱟ ᱾ ᱥᱚᱰᱤᱭᱟᱢ ᱨᱮᱭᱟᱜ ᱟᱴᱚᱢᱤᱠ ᱢᱟᱥ ᱫᱚ ᱦᱩᱭᱩᱜ ᱠᱟᱱᱟ ᱒᱒.᱙᱘᱙᱘ ᱾

ᱵᱟᱦᱨᱮ ᱡᱚᱱᱚᱲ

• ᱥᱚᱰᱤᱭᱟᱢ ᱯᱤᱨᱤᱭᱳᱰᱤᱠ ᱴᱮᱵᱟᱞ ᱨᱮ (ᱱᱳᱴᱷᱤᱝᱜᱟᱢ ᱡᱮᱜᱮᱛ ᱵᱤᱨᱫᱟᱹᱜᱟᱲ)