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A transition element X has a configuration (Ar)3d4 in its +3 oxidation state. Its atomic number is

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Important Questions on Structure of Atom

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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 20
Among the following which one is not paramagnetic? [Atomic numbers; Be=4, Ne=10, As=33, Cl=17]
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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 22

Consider the following sets of quantum number

  n l m s
(i) 3 0 0 +1/2
(ii) 2 2 1 +1/2
(iii) 4 3 -2 -1/2
(iv) 1 0 -1 -1/2
(v) 3 2 3 +1/2

Which of the following sets of quantum number is not possible?

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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 23
Any f-orbital can accommodate upto
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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 24
For principal quantum number n=5, the total number of orbitals having l=3 is
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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 25
The four quantum numbers of valence electron of potassium are
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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 26
In the ground state, an element has 13 electrons in its M-shell. The element is
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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 27

Which combinations of quantum numbers, n, l, m and s for the electron in an atom does not provide a permissible solution of the wave equation?

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Gamma Question Bank for Medical Chemistry>Chapter 2 - Structure of Atom>Assignment>Q 28
The orbital angular momentum of electron in 4s orbital is