Chemistry - Periodic Table - Halogens properties - Compare Alkali Metals and Halogens
A comparison sorting activity. Show 12 property statements and sort into 'ALKALI METALS (Group 1)' or 'HALOGENS (Group 17)'. Statements: 1) 'Have 1 valence electron' (Alkali). 2) 'Have 7 valence electrons' (Halogens). 3) 'Reactivity INCREASES down the group' (Alkali). 4) 'Reactivity DECREASES down t