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group 1: alkali metals
group 2: alkaline earth metals
group 16: chalcogens
group 17: halogens
group 18: noble gases

2006-12-07 12:56:17 · answer #1 · answered by physandchemteach 7 · 0 0

gr 1 alkali metals; gr2 alkalian earth metals ;gr 16 chalcogens ;gr17 halogens ;gr 18 noble gases .For names see periodic table

2006-12-07 21:01:31 · answer #2 · answered by ninad p 2 · 0 0

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