Indium

Indium, ₄₉In

Indium
Pípè	/ˈɪndiəm/ ​(IN-dee-əm)
Ìhànsójú	silvery lustrous gray
Ìwúwo átọ̀mù Ar, std(In)	114.818(1)
Indium 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 Ga ↑ In ↓ Tl cadmium ← indium → tin
Nọ́mbà átọ̀mù (Z)	49
Ẹgbẹ́	group 13 (boron group)
Àyè	àyè 5
Àdìpọ̀	Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntì	Post-transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Kr] 4d10 5s2 5p1
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 18, 3
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	429.7485 K ​(156.5985 °C, ​313.8773 °F)
Ígbà ìhó	2345 K ​(2072 °C, ​3762 °F)
Kíki (near r.t.)	7.31 g/cm3
when liquid (at m.p.)	7.02 g/cm3
Heat of fusion	3.281 kJ/mol
Heat of	231.8 kJ/mol
Molar heat capacity	26.74 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1196 1325 1485 1690 1962 2340
Atomic properties
Oxidation states	−5, −2, −1, +1, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.78
Atomic radius	empirical: 167 pm
Covalent radius	142±5 pm
Van der Waals radius	193 pm
Spectral lines of indium
Other properties
Natural occurrence	primordial
Crystal structure	​tetragonal
Speed of sound thin rod	1215 m/s (at 20 °C)
Thermal expansion	32.1 µm/(m·K) (at 25 °C)
Thermal conductivity	81.8 W/(m·K)
Electrical resistivity	83.7 n Ω·m (at 20 °C)
Magnetic ordering	diamagnetic
Young's modulus	11 GPa
Mohs hardness	1.2
Brinell hardness	8.83 MPa
CAS Number	7440-74-6
Main isotopes of indium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 113In 4.3% 113In is stable with 64 neutrons 115In 95.7% 4.41×1014 y β− 0.495 115Sn