Mendeleev's Periodic Table > Li - Lithium

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. Lithium is mixed (alloyed) with aluminium and magnesium for light-weight alloys, and is also used in batteries, some greases, some glasses, and in medicine.

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 (Lithium):

MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 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
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 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


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