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The valency of the element having atomic...

The valency of the element having atomic number 9 is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
A
`X(9)to1s^(2)2s^(2)2p^(5)`
Thus it accepts 1 electron to make noble gas configuration. Therefore its valency is one (1).
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  2. Which orbital give an electron the greatest probability of being found...

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  8. The orbital with maximum energy is

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  9. The correct orders of increasing energy of atomic orbitals is

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  10. An ion has 18 electrons in the outermost shell it is

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  11. Filling of Electrons in Molecular Orbitals

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  12. Which of the following sets of orbitals may be degenerate

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  13. Which of the following orbital is not possible

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  15. The number of orbitals present in the shell with n=4 is

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  16. The angular momentum of an electron is zero. In which orbital may it b...

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