Atoms

Molecules

Liq. ˚C

Chemistry with covalent bonds

Lithium

Li-F

LiF

Lithium

fluoride

Li 1b

F 1b

845/1676

Li(−) 2b

F(+) 2b

Li-O

Li2O

Lithium

oxide

Li 1b

O 2b

1438/2600

Li(−) 2b

O(+) 3b

Beryllium

Be-Be

Be2

Beryllium

Be(+) 1b

Be(−) 1b

1287/2469

Be 2b

Be 2b

Be-F

BeF2

Beryllium

fluoride

Be 2b

F 1b

554/1169

Be(−) 3b

F(+) 2b

Be-O

BeO

Beryllium

Oxide

Be(+) 1b

O(−) 1b

2507/3900

Be 2b

O 2b

Boron

B-B

B2

Di-Boron

B 1b

B 1b

2076/3927

B(+) 2b

B(−) 2b

B-F

BF3

Boron

trifluoride

B 3b

F 1b

−127/−100

B(−) 4b

F(+) 2b