Àdàkọ:Infobox fermium

Fermium, 100Fm
Fermium
Pípè /ˈfɜːrmiəm/ (FUR-mee-əm)
Ìhànsójúunknown, probably silvery, white or metallic gray
nọ́mbà ìsújọ[257]
Fermium 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
Er

Fm

(Upn)
einsteiniumfermiummendelevium
Nọ́mbà átọ̀mù (Z)100
Ẹgbẹ́group n/a
Àyèàyè 7
Àdìpọ̀Àdìpọ̀-f
Ẹ̀ka ẹ́límẹ́ntì  Actinide
Ìtò ẹ̀lẹ́ktrọ́nù[Rn] 5f12 7s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 32, 30, 8, 2
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́1800 K ​(1527 °C, ​2781 °F)
Atomic properties
Oxidation states+2, +3
ElectronegativityPauling scale: 1.3
Other properties
Natural occurrencesynthetic
CAS Number7440-72-4
Main isotopes of fermium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
252Fm syn 25.39 h SF - -
α 7.153 248Cf
253Fm syn 3 d ε 0.333 253Es
α 7.197 249Cf
255Fm syn 20.07 h SF - -
α 7.241 251Cf
257Fm syn 100.5 d α 6.864 253Cf
SF - -
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References