Periodic Table Navigator

See how the elements are related to each other

Group
16 17 18
5
53
I
Iodine
[Kr] 5s2 4d10 5p5
Period 6
84
Po
Polonium
[Xe] 6s2 4f14 5d10 6p4
85
At
Astatine
[Xe] 6s2 4f14 5d10 6p5
Name origin: the Greek 'astatos', meaning unstable
Atomic weight (amu): 210.0
Specific heat capacity (J/gK):
Density (g/cm3): 7.0
Melting point (K): 575.0
Boiling point (K): 610.0
Electronegativity (Pauling): 2.2
Abundance (mg/kg): 0.001
7
117
Ts
Tennessine
[Rn] 7s2 5f14 6d10 7p5

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)