Rhenium

Rhenium, ₇₅Re

Rhenium
Pípè	/ˈriːniəm/ ​(REE-nee-əm)
Ìhànsójú	grayish white
Ìwúwo átọ̀mù Ar, std(Re)	186.207(1)
Rhenium 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 Tc ↑ Re ↓ Bh tungsten ← rhenium → osmium
Nọ́mbà átọ̀mù (Z)	75
Ẹgbẹ́	group 7
Àyè	àyè 6
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Xe] 4f14 5d5 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 32, 13, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	3459 K ​(3186 °C, ​5767 °F)
Ígbà ìhó	5869 K ​(5596 °C, ​10105 °F)
Kíki (near r.t.)	21.02 g/cm3
when liquid (at m.p.)	18.9 g/cm3
Heat of fusion	60.43 kJ/mol
Heat of	704 kJ/mol
Molar heat capacity	25.48 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 3303 3614 4009 4500 5127 5954
Atomic properties
Oxidation states	−3, −1, 0, +1, +2, +3, +4, +5, +6, +7 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.9
energies	(more)
Atomic radius	empirical: 137 pm
Covalent radius	151±7 pm
Spectral lines of rhenium
Other properties
Natural occurrence	primordial
Crystal structure	​hexagonal
Speed of sound thin rod	4700 m/s (at 20 °C)
Thermal expansion	6.2 µm/(m·K)
Thermal conductivity	48.0 W/(m·K)
Electrical resistivity	193 n Ω·m (at 20 °C)
Magnetic ordering	paramagnetic
Young's modulus	463 GPa
Shear modulus	178 GPa
Bulk modulus	370 GPa
Poisson ratio	0.30
Mohs hardness	7.0
Vickers hardness	2450 MPa
Brinell hardness	1320 MPa
CAS Number	7440-15-5
Main isotopes of rhenium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 185Re 37.4% 185Re is stable with 110 neutrons 187Re 62.6% 4.35×1010 y α (not observed) 1.653 183Ta β- 0.0026 187Os