Chemical element
Lithium
- Li
- Z = 3
- alkali metal
Lithium (Li) is element 3, a alkali metal in period 2 and group 1. Its standard atomic weight is 6.94 Da. Weights follow IUPAC standard atomic weights, 2021 revision.
Identity
SymbolLi
Standard atomic weight6.94atomic mass units (Da)
Mass in kilograms1.1524141 × 10^-26
Categoryalkali metal
Group1
Period2
Blocks-block
Electrons in a neutral atom3
Neutrons in the most common isotope4≈
Quantities
Molar mass6.94 g/mol
Mass of one mole6.94 grams
Atoms in one gram8.6774363 × 10^22
Mass of one atom1.1524141 × 10^-23 g
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