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Spin quantum number (m(s)) refers to the...

Spin quantum number `(m_(s))` refers to the_______pssible orientations of the spin axis of an electron.

A

infinite

B

six

C

four

D

two

Text Solution

Verified by Experts

The correct Answer is:
D
Possible values of `m_(s)` are `+1//2` and `-1//2`.
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For a helium atom in its ground state, what are quantum numbers (n,l,m_(l)andm_(s)) for the (a) spin-up electron and (b) spin-down electron?

An electron in an atom can be completely designated with the help of four quantum numbers. Out of these, the first three i.e., principal (n), azimuthal (l) and magnetic (m) quantum number are obtained from the solution of Shrodinger wave equation while the spin(s) quantum number arises from the spin of the electron around its axis clockwise or antiaclockwise. Ot of these principal quantum number tells about the size, azimuthal quantum number about the shape and magnetic quantum signifies the orientation of the electron orbital. How many electrons in a given atom have the following set of quantium numbers? n = 3, l =2, m = +2, s = -1//2

R SHARMA-STRUCTURE OF ATOM-Follow-up Test
  1. How many orbitals are possible for n = 2 and l = 1?

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  2. Which of the following is incorrect?

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  3. Spin quantum number (m(s)) refers to thepssible orientations of the sp...

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  4. Experiements on the emission spectra ofatoms gave rise to a fourth qua...

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  5. Conclusive proof of electron spin was provided by O. Strem and W. Gerl...

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  6. Which of the following is incorrect?

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  7. Which of the following sate of quantum numbers is not permissible for ...

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  8. Which of the following combinations of quantum numbers is possible for...

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  9. Strictly specking, an orbital does not have a well-defined shape becau...

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  10. For which of the following orbitals is the radial probaility density R...

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  11. ns orbital hasradial nodes.

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  12. How many peacks are present in the radial distribution function for th...

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  13. The radius of maximum probability for 1s orbital of H atom is

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  14. All s orbitals are spherically symmetrical, meating that the probabili...

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  15. How many nodal planes pass through the nucleus for a g orbital?

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  16. In case of p(z) orbital, theis a nodal plane.

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  17. Which of the following d orbitals has diagonal nodal planes?

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  18. Which of the following orbitals is called the ground state of an H ato...

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  19. Which of the following orbitals has maximum enegry?

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  20. Which of the following electrons extres the maximum shileding effect i...

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