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The number of unpaired electrons in the ...

The number of unpaired electrons in the scandium atom is

A

1

B

2

C

0

D

3

Text Solution

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The correct Answer is:
A
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RESONANCE-PERIODIC TABLE & PERIODICITY-Advanced Level Problems
  1. The lithium ion (Li^(+)) and hydride ion (H^(-)) are isoelectronic ion...

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  2. Which of the following sequence of elements is arranged in the order o...

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  3. The number of unpaired electrons in the scandium atom is

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  4. The three quantum numbers n,l,m corresponding to the valence electrn i...

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  5. Which of the following pairs represents isoelectronic ions?

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  6. Which of the following statements concerning transition elements is fa...

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  7. Element having (4,0,0+1//2) as a set of four quantum numbers for its v...

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  8. Europium forms stable Eu^(2+) ions because

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  9. Assuming a Lewis structure for SO(2) in which all the atoms obey the o...

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  10. Which of these ions is expected to be colored in aqeous solution? [...

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  11. How many unpaired electrons ae in a Fe^(2+) ion in the ground state?

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  12. When the atoms Li,Be,B and Na are arranged in order of increasing atom...

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  13. The noble gas was first time discovered by

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  14. The correct order of increasing first ionization energy is

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  15. The group that has the species correctly listed in the order of decrea...

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  16. The number of valence electrons in an atom with the configuration 1s^(...

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  17. The compound in which Mn has oxidation state of +3 is

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  18. The most abundant element found in the earth's crust is:-

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  19. Einstenium has 11 electrons in the 4f subshell. The number of unpaired...

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  20. Lanthanoid contraction is caused due to:

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