The properties which are common to the e...

The properties which are common to the elements belonging to group `1` and `17` of periodic tables are\

Electropositive character increases downt the group.

Reactivity decreases from a top to bottom

Atomic radii increases as atomic number increases

Electronegatively decreases on moving down a group.

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The correct Answer is:

A, C, D

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The properties which are common to the elements belonging to groups 1 and 17 of periodic tables are.

electropositive character increases down the group.

reactivity decreases from top to bottom.

atomic radii increases as atomic number increases.

electronegatively decreases on moving down a group.

same number of protons

same number of electrons in the valence shell

same number of neutrons

same number of electrons

Electropositive character increase down the groups.

Reactivity decrease from top to bottom in these groups.

Atomic radii increase as the atomic number increase.

Electronegativity decreases on moving down the group