Li
Lithium
Z 3 6.94 g/molAlkali Metal
Nucleus
3 Protons
4 Neutrons
3 Electrons (1 Valence)
Shell distribution: K2 • L1 • M0 • N0 • O0 • P0 • Q0
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[He]2s1
Radii
Empirical
145 pm1.45 Å
Calculated
167 pm1.67 Å
Covalent
128±7 pm1.28±0.07 Å
van Der Waals
182 pm1.82 Å
Oxidation States
CommonRare
-1
0
+1
Crystal Structure
Use the arrow keys to rotate, hold Shift with the left and right arrows to roll, and press Home to reset the view.
Body-centred Cubic