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Lanthanum (symbol La) is a chemical element, atomic number 57 on the periodic table.

Characteristics and historyEdit

Lanthanum has an atomic mass of 138.91, and was discovered by Humans for the first time in Sweden on Earth's European continent in the year 1839. This element is the first of the lanthanide series of heavy elements. (ST reference: Star Fleet Medical Reference Manual)

See alsoEdit

External linkEdit

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