Periodic Table Navigator

See how the elements are related to each other

Group
16 17 18
Period 2
8
O
Oxygen
[He] 2s2 2p4
9
F
Fluorine
[He] 2s2 2p5
Name origin: the Latin 'fluere', meaning to flow
Atomic weight (amu): 18.9984032
Specific heat capacity (J/gK): 0.824
Density (g/cm3): 0.001696
Melting point (K): 53.53
Boiling point (K): 85.03
Electronegativity (Pauling): 3.98
Abundance (mg/kg): 585.0
3
17
Cl
Chlorine
[Ne] 3s2 3p5

Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.

Legend

3d10 Different electron shell (n)

3d10 Different electron count

3d10 New term (orbital)