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Author: WikiMatrix
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English[en]
From 1809 onwards, light metals, such as magnesium, aluminium, and titanium, were discovered, as well as less well-known heavy metals including gallium, thallium, and hafnium.
Indonesian[id]
Sejak tahun 1809 dan seterusnya, ditemukan logam ringan, seperti magnesium, aluminium, dan titanium, dan juga logam berat yang kurang terkenal termasuk galium, talium, dan hafnium.