Question

If Z = 3, what would be the valency of the element? Also, name the element.
NCERT Class IX
Sciences - Main Course Book
Chapter 4. Structure of the Atom​

Answer 1

Step-by-step explanation:

By Z=3, we mean that the Atomic number (Z) of element is 3. It's electronic configuration is 2,1. Hence, the valency of this element is 1 since outermost shell has only one electron. Therefore the element with Z=3 is Lithium.

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Answer 2

Step-by-step explanation:

The valencythis element is 1 since outermost shell has only one electron. Therefore the element with Z=3 is Lithium