1.

The properties which are common to both groups 1 and 17 elements in the periodic table are

Answer»

electropostive character INCREASES down the groups
reactivity decreases from TOP to bottom in these groups
atomic radii increases as the atomic number increases
electronegativity decreases on moving down a group

SOLUTION :Statements (a), (c) and (d) are common to both the group 1 and 17. STATEMENT (b) is true only for group 17 ELEMENTS.


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