Chemistry - Periodic Table - Alkali metals properties - Alkali Metal Properties

A 5-step property overview. Step 1: 'All have 1 valence electron' - show Bohr models for Li(2,1), Na(2,8,1), K(2,8,8,1). All have 1 electron in outer shell. 'This is WHY they're in the same group and behave similarly!' Step 2: 'They're surprisingly SOFT metals' - show animation of cutting sodium wit