1s
2s
2p
3s
3p
4s
3d
4p
5s
4d
5p
6s
5d
*
6p
7s
6d
!
s
block
d
block
p
block
f
block
*
Lanthanides
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Actinides
Density
Melting
Point
Boiling
Point
Discovery
Date
1st ionisation
energy
Enthalpy of
fusion
Enthalpy of
Vaporisation
Electrical
Resistivity
Thermal
Conductivity
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