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Chemistry · Structure of atom

हिन्दी

Consider the following statements regarding quantum numbers and orbitals:\n(A) The magnetic quantum number \( m_l \) designates the orientation of orbitals.\n(B) The total number of orbitals in a shell with principal quantum number \( n \) is \( n^2 \).\n(C) The azimuthal quantum number \( l \) determines the shape of the orbital.\n(D) The spin quantum number has values of +1 and -1. \nWhich of the above statements are correct?

  1. (A), (B), (C) and (D)
  2. and (C) only
  3. (B), (C) and (D) only
  4. (A), (B) and (C) only

Correct answer · Option 4

(A), (B) and (C) only

Explanation

Statements (A), (B), and (C) are correct. Statement (D) is incorrect because spin quantum number values are +1/2 and -1/2.
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