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Nd

Neodymium

Neodymium is a chemical element with the symbol Nd and atomic number 60. It has a standard atomic weight of 144.24, sits in period 6 of the f-block, and is classified as a lanthanide.

Properties

SymbolNd
Atomic number60
Standard atomic weight144.24
CategoryLanthanide
Groupf-block — no group
Period6
Electron configuration[Xe] 4f4 6s2
Outer-shell electrons2

The figure of 144.24 is a standard atomic weight.

Calculate with neodymium

Atomic weights are the IUPAC 2021 standard values, abridged to the conventional five significant figures. Group, period, category and electron configuration are derived from the atomic number rather than stored, so they cannot drift out of step with it.