1) Which rule is indicated by the chart given below Write the rule and give two examples of the elements showing same chemical properties.
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) J belongs to the fifth group hence, it has 5 valence electrons.
(ii) M belongs to group number VII hence, it has 7 valence electrons. To attain stability it needs to gain 1 electron and thereby it forms single negative charged ion.
(iii) T is more reactive than R. The reactivity of an element increases down the group.
(iv) The period number indicates the number of shells present hence, T is the element which is having its electrons arranged in four shells.
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I don't the answer i am sorry
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