passes (2) In Dobereiner's triads Li, Na, K, the atomic masses Lithium and Potassium are 6.9
Li Lithium Chemical Element Periodic Table. Single vector illustration, colorful Icon with molar mass, electron conf. and atomic number Stock Vector Image & Art - Alamy
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Chem4Kids.com: Lithium: Orbital and Bonding Info
Solved: Calculate The Average Atomic Mass Of Lithium Using... | Chegg.com