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Lithium

3
Li
6.94
Lithium
 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance

General:

Name: Lithium Symbol: Li
Group: Alkali Met. Atomic weight: 6.94
Density @ 293 K: 0.53 g/cm3 Atomic volume: 13.10 cm3/mol
Group: Alkali Met. discovered: 1817

States:

state (s, l, g): s
melting point: 453.74 K boiling point: 1620 K
Heat of fusion: 3.00 kJ/mol Heat of vaporization: 145.920 kJ/mol

Energies:

1st ionization energy: 520.2 kJ/mole
electronegativity: 0.98 2nd ionization energy: 7394.4 kJ/mole
electron affinity: 59.63 kJ/mole 3rd ionization energy: 11814.6 kJ/mole
Specific heat: 3.6 J/gK heat atomization: 161 kJ/mole atoms

Oxidation & Electrons:

Shells: 2,1 electron configuration: [He] 2s1
minimum oxidation number: -1 maximum oxidation number: 1
min. common oxidation no.: 0 max. common oxidation no.: 1

Appearance & Characteristics:

structure: bcc: body-centered cubic color: silvery
uses: batteries, lubricant toxicity:
hardness: 0.6 mohs characteristics: soft, lightest solid

Reactions:

reaction with air: vigorous, =>Li2O
reaction with 6M HCl: vigorous, =>H2, LiCl reaction with 6M HCl: vigorous, =>H2, LiCl
reaction with 15M HNO3: vigorous, =>LiNO3 reaction with 6M NaOH: mild, =>H2, LiOH

Other Forms:

number of isotopes: 2 hydride(s): LiH
oxide(s): Li2O chloride(s): LiCl

Radius:

ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 152 pm ionic radius (1+ ion): 90 pm
ionic radius (2+ ion): pm ionic radius (3+ ion): pm

Conductivity:

thermal conductivity: 84.8 J/m-sec-deg
electrical conductivity: 107.8 1/mohm-cm polarizability: 24.3 A^3

Abundance:

source: Spodumene (silicate)
rel. abund. solar system: 1.757 log abundance earth's crust: 1.3 log
cost, pure: 27 $/100g cost, bulk: $/100g