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CBSE Class 10 Answered

what are halogens,chalcogens,alkaline earth metals?
Asked by | 05 Apr, 2008, 02:54: PM
Expert Answer

Halogens are 17th group, Chalkogens are 16th , and Alkaline earth metals are 2nd group elements.

Answered by | 22 May, 2008, 06:32: AM
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