Lanthanum Discovery In 1839, Carl Gustav Mosander, a S...
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Lanthanum Discovery In 1839, Carl Gustav Mosander, a S...
Lutetium Discovery French chemist, painter, sculptor and mu...
Ytterbium Discovery Swiss chemist Jean Charles Galissard Ma...
Thulium Discovery Thulium was discovered by Swedish chemist...
Erbium Discovery In 1843, Swedish chemist and pharmacist&nb...