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Structure of the Atom — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceStructure of the Atom2 Marks
Question
An element has Z = 7. What is the valency of the element? Also name the element.
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Answer

Atomic No. = 7
E.C = 2, 5
Valency of given element = 3
Given element is NITROGEN.

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