lithium

helium${\displaystyle \longleftarrow }$ 3 ${\displaystyle \longrightarrow }$beryllium

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Lithium

Pronunciation

• enPR: lĭth'ēəm, IPA ^(key): /ˈlɪθi.əm/

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• Hyphenation: lith‧i‧um

Noun

Singular lithium

Plural none

1. Lithium is a light silver-grey metal. It has an atomic number of 3 and the symbol Li. It is the first alkali metals.

   Lithium reacts very easily. It even reacts with water.

   The lightest metal known is lithium.