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La
Lanthanum
Z
57
138.905 g/mol
Lanthanide
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Overview
Atomic Properties
Thermodynamics
Electromagnetism
Isotopes
Group
3
Period
6
Block
f
Occurrence
Primordial
Biological Role
---
History
1838 (discovery)
Carl Gustaf Mosander
1923 (isolation)
---
Named By
Carl Gustaf Mosander
Latin Name
Lanthanum
Abundance
Universe
< 0.0001%
0.002 ppm
x
Sun
< 0.0001%
0.002 ppm
x
Meteorites
< 0.0001%
0.29 ppm
x
Earth's crust
0.0039%
39 ppm
x
Oceans
< 0.0001%
< 0.0001 ppm
x
Humans
---
x
56
Ba
58
Ce
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