SELECT * FROM question_mgmt as q WHERE id=4021 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=8 AND subId=16 AND chapterId=183 and ex_no='8' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 9th science Structure of the Atom if z 3 what would be the valency of the element

Question:

If Z = 3, what would be the valency of the element? Also, name the element.

Answer:

Z (atomic no.)= 3
∴ Electronic configuration = 2, 1
Valency = 1
Name of the element is lithium.


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