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Which one of the following is the correc...

Which one of the following is the correct electronic configuration of potassium?

A

2,8,9

B

8, 2,9

C

2, 8, 8,1

D

1, 2, 8, 8

Text Solution

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The correct Answer is:
C
2, 8, 8,1
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S CHAND IIT JEE FOUNDATION-ATOMIC STRUCTURE-SELF ASSESSMENT SHEET -20
  1. Choose the correct options and fill in the blanks by the correct word....

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  2. Choose the correct options and fill in the blanks by the correct word....

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  3. Choose the correct options and fill in the blanks by the correct word....

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  4. Choose the correct options and fill in the blanks by the correct word....

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  5. Match the following :

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  6. Draw diagrams representing the atomic structures of the following: O...

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  7. Draw diagrams representing the atomic structures of the following: c...

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  8. Which one of the following is the correct electronic configuration of ...

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  9. What are the main postulates of Dalton's atomic theory ? What were its...

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  10. What will be the composition of the nucleus of the atom of an element ...

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  11. Which atom does not have any neutron in the nucleus and why?

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  12. State the differences between atoms and ions.

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  13. Which symbols are used to represent different Bohr's orbits?

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  14. How does their energy change when we move outwards from the nucleus?

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  15. Rutherford's experiment showed for the first time that the atom has

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  16. Neutron is present in all atoms except

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  17. The statements below are false. For each statement replace the underli...

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  18. The statements below are false. For each statement replace the underli...

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  19. What refinements did Bohr make to Rutherford's proposed atomic theory?

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  20. Look at the two atomic models. Do the two atoms represent different el...

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