Question

write a one difference between group 1 and group 2 element​

Answer 1

The fundamental difference in electronic configuration between group 1 and group 2 elements is that, group 1 elements have one valence electron whereas group 2 elements have two valence electrons. General Properties of group 1 elements: (i) They react with water vigorously to form strong alkali hydroxides.

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Answer 2

Answer:

group one elements valence is 1

and group two elements valance is 2

group one elements radius is larger than group two

this is best difference to think in mind