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Fermium

100
Fm
(257)
Fermium
 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance

General:

Name: Fermium Symbol: Fm
Group: Rare Earth, Actinides Atomic weight: (257)
Density @ 293 K: ? Atomic volume: ?
Group: Rare Earth, Actinides discovered: 1954

States:

state (s, l, g):
melting point: K boiling point: K
Heat of fusion: ? Heat of vaporization: ?

Energies:

1st ionization energy: 627 kJ/mole
electronegativity: 1.3 2nd ionization energy: kJ/mole
electron affinity: kJ/mole 3rd ionization energy: kJ/mole
Specific heat: ? heat atomization: kJ/mole atoms

Oxidation & Electrons:

Shells: 2,8,18,32,30,8,2 electron configuration: [Rn] 5f12 7s2
minimum oxidation number: 0 maximum oxidation number: 3
min. common oxidation no.: 0 max. common oxidation no.: 3

Appearance & Characteristics:

structure: color:
uses: toxicity:
hardness: mohs characteristics: Radioactive

Reactions:

reaction with air:
reaction with 6M HCl: reaction with 6M HCl:
reaction with 15M HNO3: reaction with 6M NaOH:

Other Forms:

number of isotopes: 0 hydride(s):
oxide(s): chloride(s):

Radius:

ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): pm

Conductivity:

thermal conductivity: J/m-sec-deg
electrical conductivity: 1/mohm-cm polarizability: 23.8 A^3

Abundance:

source: Synthetic
rel. abund. solar system: log abundance earth's crust: log
cost, pure: $/100g cost, bulk: $/100g