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(A) : The radial probability of 1s elect...

(A) : The radial probability of 1s electron first increases, till it is maximum at 0.53 Å, and then decreases.
(R) : Bohr's radius for the first orbit is 0.53 Å.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-Objective Exericse - 2A
  1. There is no difference between a 2p and a 3p orbital regarding

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  2. The probability of finding electron in XY plane for P(Z) - orbital is

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  3. (A) : The radial probability of 1s electron first increases, till it i...

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  4. The maximum number of electrons that can be filled into all the orbita...

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  5. The number of sub levles in the quantum level n = 3 is

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  6. The number of different spatial arrangements for the orbital with 1=2 ...

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  7. An electron in an atom has m = -2 value. Then (I) its 'n' value shou...

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  8. The maximum number of electrons that can be present in an orbit with s...

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  9. The maximum number of electrons with s = +1/2 in an orbital for which ...

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  10. (A) : The energy of electrons is largely determined by its principal q...

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  11. If the value of principal quantum number is 3, the total possible valu...

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  12. For a particular value of azimuthal quantum number (I), the total numb...

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  13. How many electrons maximum can have n+1 = 4 in an atom.

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  14. (A) : For n = 3,l may be 0,1,2 and 'm' may be 0, (+-1 and 0), (+- 2, +...

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  15. If magnetic quantum number of a given electron is represented -3, then...

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  16. The radial probability distribution curve obtained for an orbital wave...

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  17. The configuration 1s^(2)2s^(2)2p^(5)3s^(1) shows

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  18. The incorrect electronic arrangment is

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  19. Given this set of quantum numbers for a multi electron atom 2, 0, 0, a...

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  20. Which one of the following pairs of atoms/ions have identical ground s...

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