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16 July 2012

Mendelevium


fermium ← mendelevium → Nobelium
Tm
↑ Md↓(Upu)


General Information Elements
Name , symbol , atomic numbermendelevium, Md., 101
Chemical seriesactinides
The Group , Period , Blockn / a , 7 , f
Appearanceunknown, probably Silvery
white or metallic gray
Atomic mass(258)  g / mol
Electron configurationRn ] 5f 13 7s 2
The number of electrons perskin2, 8, 18, 32, 31, 8, 2
Physical characteristics
Phasesolid
Melting point1100 K
(827 ° C , 1521 ° F )
The characteristics of the atomic
Oxidation state2, 3
Electronegativity1.3 ( Pauling scale )
Ionization energyThe first: 635 kJ / mol
Other
Magnetic propertiesno Data
CAS numbers7440-11-1
Isotope
isoNAhalf-lifeDMDE MeV )DP
257 Md.syn5:52 hε0406257 Fm
α7558253 Ice
SF--
258 Md.syn51.5 dε1230258 Fm
260 Md.syn31.8 dSF--
α7000256 Ice
ε-260 Fm
β -1000260 No
Mendelevium (pronounced / ˌ mɛndəlɛviəm / )) is a synthetic element with the symbolMd (formerly Mv ) and atomic number 101. This element is named after Dmitri Mendeleev .
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