Mendelevium (Md) Properties |
AMendelevium (AMd)
Properties 1/ |
Nuclear (101 protons/electrons)
- Atomic Number: 101
- Atomic Mass: 258
- Atomic Energy: 0.385 Ergs
- Group: 3; Period: 7
- Family: Rare Earth:
Actinide Series
- Bonding Radius: ? Angstroms
- Atomic Radius: ? Angstroms
- Atomic Volume: ? cm3mol-1
- 16 Isotopes:
245Md to 260Md
- Stable Isotopes: None
|
Nuclear (101 Aprotons/positrons)
- Atomic Number: 101
- Atomic Mass: 258
- Atomic Energy: 0.385 Ergs
- Group: 3; Period: 7
- Family: Rare Earth:
Actinide Series
- Bonding Radius: ? Angstroms
- Atomic Radius: ? Angstroms
- Atomic Volume: ? cm3mol-1
- 16 AIsotopes: 245AMd
to 260AMd
- Stable AIsotopes: None
|
Physical
- Man made radioactive metal
- Density: ? g cm-3
- Melting Point: ? oC
- Boiling Point: ? oC
- Specific Heat: ? J g-1 K-1
- Heat of Vaporization: ? kJ mol-1
- Heat of Fusion: ? kJ mol-1
- Electrical Conductivity: ? 106 cm-1 Ohm-1
- Thermal Conductivity: 0.1 W cm-1 K-1
|
Physical
- Radioactive metal
- Density: ? g/cm-3
- Melting Point:? oC
- Boiling Point: ? oC
- Specific Heat: ? J g-1 K-1
- Heat of Vaporization: ? kJ mol-1
- Heat of Fusion:? kJ mol-1
- Electrical Conductivity: ? 106 cm-1 Ohm-1
- Thermal Conductivity: 0.1 W cm-1 K-1
|
Chemical
- Valance Number: +2,+3
- Electron Configuration: 2,8,18,32,31,8,2
- Electronegativity: 1.3
- 1st Ionization Potential: 6.6 Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
|
Chemical
- Valance Number: -2,-3
- Positron Configuration: 2,8,18,32,31,8,2
- Positronpositivity: 1.3
- 1st Ionization Potential: 6.6 Volts
- 2nd Ionization Potential: ? Volts
- 3rd Ionization Potential: ? Volts
|
Identified by G. T.
Seaborg, S. G. Tompson,
A. Ghiorso, and K. Street Jr
United States in 1955
|
Identified by Norm Hansen in 2001
|