Lithium Group (Group IA) Trends
- Page ID
- 68242
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Summary of Alkali Metal (Group 1) Trends:
3. Li does not replace proton on PhC=CH, whereas remaining elements do.
4. Wide range of salts with ionic properties formed:
- high melting points
- water soluble that give conducting solutions
- halide salts are ionic and not hydrolyzed
- oxides and hydroxides are basic
- hydrides are ionic, basic, and strong reducing agents
7. The high charge/size ratio for lithium leads to anomalies
- LiH more stable than other hydrides</span>
- Li2CO3 so much less stable than other carbonates in group
- Li salts less soluble in H2O, more soluble in organic solvents
- Li/Na form a number of hydrates salts, K some, Rb/Cs none
8. Solubilities of the hydroxides in water increase down the column: LiOH < NaOH < KOH < RbOH < CsOH