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For an Element, Z = 9. the Valency of this Element Will Be : - Science

MCQ

For an element, Z = 9. The valency of this element will be :

Options

  • 4

  • 2

  • 1

  • 3

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Solution

1
Atomic number is 9, which means that number of electrons is also 9. Electronic configuration is 2 , 7. So, the atom will gain 1 electron to complete its octet. Therefore, the valency is 1.

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Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 4 Structure of the Atom
Multiple Choice Questions ( MCQs) | Q 46 | Page 212
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