plzz answer the question correctly i wil mark as brainlist and plz answer all question
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1
Answer :
A and E same group
B and D same period
Explanation :
A is element Sodium and E is element Potassium.
Both belongs to group 1
B is element Beryllium and D is element Nitrogen.
Both belongs to the same period i.e., period no. 2
Answered by
3
Answer:
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Explanation:
(i). Element A and E belong to the same group .
(ii). Element B and D belong to the same period .
-->> Elements whose numbers of valence electrons are same , belong to same group . Here , in A and E , number of valence electrons are same that is 1.
-->>Elements which have same valence shells are belong to same period .
Here, in B and D, number of valence shells are same that is 2.
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