Periodic Table Navigator

See how the elements are related to each other

Group
f7 f8 f9
6
64
Gd
Gadolinium
[Xe] 6s2 4f7 5d1
Period 7
95
Am
Americium
[Rn] 7s2 5f7
96
Cm
Curium
[Rn] 7s2 5f7 6d1
Name origin: Pierre Curie, a physicist, and Marie Curie, a physicist and chemist
Atomic weight (amu): 247.0
Specific heat capacity (J/gK):
Density (g/cm3): 13.51
Melting point (K): 1613.0
Boiling point (K): 3383.0
Electronegativity (Pauling): 1.28
Abundance (mg/kg): 0.001

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)