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Lanthanum
Lanthanum

Thulium
Thulium



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Lanthanum
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Thulium

Facts About Lanthanum and Thulium

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  • Lanthanum metal is highly malleable, ductile and sectile.
  • If exposed to air Lanthanum metal oxidizes rapidly.
Found in Minerals, Mining, Ores of Minerals
Carl Gustaf Mosander
In 1838
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  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
Found in Minerals, Mining, Ores of Minerals
Per Teodor Cleve
In 1879
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