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The values of four quantum numbers of va...

The values of four quantum numbers of valence electron of an element are n=4, l = 0, m = 0, and s = +1/2. The element is

A

K

B

Ti

C

Na

D

Sc

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The correct Answer is:
A
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AAKASH SERIES-ATOMIC STRUCTURE-Objective exercise - 2B
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  4. Number of electrons with +1/2 spin in n=3 is

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  5. Number of electrons with -1/2 spin in n=4 is

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  6. For which one of the following sets of quantum numbers an electron wil...

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  7. Which of the following sets of quantum numbers represents the highest ...

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  8. Which of the following elements has least number of electrons in its "...

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  9. The atomic number (Z) of an element is 25. In its ground state, how ma...

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  10. The following species has the lowest number of electrons in the valenc...

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  11. The number of unpaired electrons present in the first excited state of...

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  12. The number of electrons in M-shell of an element with atomic number 24...

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  14. If the atomic number of an element is 36, the number of electrons pres...

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  16. Which of the following has maximum number of unpaired electrons (atomi...

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  17. Which one of the following has more number of unpaired d-electrons ?

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