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Mendelevium, 00Md
Mendelevium
Pronunciation
Mass number[258]
Mendelevium 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 Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Tm

Md

(Upt)
fermiummendeleviumnobelium
Groupమూస:Infobox element/symbol-to-group/format
Periodperiod 7
Block  f-block
Electron configuration[Rn] 5f13 7s2
Electrons per shell2, 8, 18, 32, 31, 8, 2
Physical properties
Phase at STPsolid (predicted)
Melting point1100 K ​(827 °C, ​1521 °F) (predicted)
Atomic properties
Oxidation states+2, +3
ElectronegativityPauling scale: 1.3
Ionization energies
  • 1st: 635 kJ/mol
  • (estimated)
Other properties
Natural occurrencesynthetic
CAS Number7440-11-1
History
Namingafter Dmitri Mendeleev
DiscoveryLawrence Berkeley National Laboratory (1955)
Isotopes of mendelevium
Template:infobox mendelevium isotopes does not exist
 Category: Mendelevium
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References