Li - Lithium

The light metal, lithium, was discovered in mineral compounds, by August Arfvedson in 1817 and electrolyticaly purified by Sir Humphrey Davy (also, independantly by Brandé) in 1818. 

Atomic number - 3 Density g/mL 0 .53
Atomic weight u 6 .941 Melting point K 453 .7
Bonding radius A 1 .23 Boiling point K 1615
Atomic radius A 2 .05 Heat of vaporization kJ/mol 145 .92
Ionization Potential V 5 .392 Heat of fusion kJ/mol 3
Electronegativity - 0 .98 Specific heat J/gK 3 .6
The oxide is a strong base.
Crystal are body centered cubic.

Electron config. : 1s2 2s1


Isotopes of Li: Click mass number for decay process, product for element page.


004
6.03 MeV
p,2.980 MeV
He-3
4.0271821
005
1.5 MeV
a/p,1.970 MeV
H-1/He-4
5.0125389
006 7.5%

Stable

6.0151222
007 92.5%

Stable

7.0160040
008
838 msec
B-/B-2a,16.004
Be-8/none
8.0224855
009
178.3 msec
B-/B-n/B-n2a,13.606
Be-9/Be-8/none
9.0267892
010
1.2 MeV
n,16.775 MeV
Li-9
10.035899
011
8.5 msec
B-/B-n/B-na,20.610
Be-11/Be-10/He-6
11.043789
MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass