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10203040506070809010011000.511.522.53‌ Å

101 - Mendelevium actinide

Atomic Mass (u)

258

Density (g/cm³)

NaN

Phase

Solid

Year of Discovery

1955
MendeleviumMdElectron 1Electron 2Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 19Electron 20Electron 21Electron 22Electron 23Electron 24Electron 25Electron 26Electron 27Electron 28Electron 29Electron 30Electron 31Electron 32Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 9Electron 10Electron 11Electron 12Electron 13Electron 14Electron 15Electron 16Electron 17Electron 18Electron 19Electron 20Electron 21Electron 22Electron 23Electron 24Electron 25Electron 26Electron 27Electron 28Electron 29Electron 30Electron 31Electron 1Electron 2Electron 3Electron 4Electron 5Electron 6Electron 7Electron 8Electron 1Electron 2

Mendelevium is a synthetic element with chemical symbol Md (formerly Mv) and atomic number 101. A metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities through neutron bombardment of lighter elements. It is the antepenultimate actinide and the ninth transuranic element.

101 Atomic Number
258  u Atomic Mass
null  K Melting Point
null  K Boiling Point
null  g/cm³ Density
null  Å Atomic Radius
null  Å Covalent Radius
1.3 Electronegativity
6.58  eV First Ionization Energy
93.91 Electron Affinity
7 Number of Shells
2, 8, 18, 32, 31, 8, 2 Electron Shell Occupations
null  J/g Specific Heat