2.2 QUANTUM MECHANICS

What is the orbital / subshell for n = 3 and ℓ = 1 ?

• 3s

• 3p

• 3d

• 3f

How many no. of orbital in 4d?

• 1

• 3

• 5

• 7

Choose the correct combination of n , ℓ and m for 3p_x orbital

• n = 3

  ℓ = 0

  m = 0

• n = 3

  ℓ = 1

  m = 0

• n = 3

  ℓ = 2

  m = 0

• n = 3

  ℓ = 3

  m = 0

choose the correct combination of   n , ℓ , m for the above diagram.

• n = 2

  ℓ = 0

  m = +1

• n = 2

  ℓ = 1

  m = +1

• n = 2

  ℓ = 2

  m = +1

• n = 2

  ℓ = 2

  m = 0

choose the correct orbital for n = 4 , ℓ = 2 , m = +1

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How many no. of electron can be occupied in 4p orbital?

• 2

• 6

• 10

• 14

How many electrons can be occupied in 4p_x orbital?

• 2

• 6

• 10

• 14

Choose the correct value of spin quantum number (s).

• • + 1/2 and - 1/2

• -1 , 0 , +1

• 0 , 1 , 2 ,3 ...∞

• 0

Which orbital is allowed ?

• 1d

• 2d

• 3d

• 0d

What is the different between 2s and 3s?

• 2s has 2 orbital while 3s has 3 orbital

• 2s is higher energy level than 3s

• 2s has spherical shape while 3s has dumbell shape

• 2s is lower energy level than 3s