MEDIUM
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Which of the following set of quantum number is/are correct for last electron of nitrogen:

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Important Questions on Atomic Structure

EASY
What is the maximum number of orbitals that can be identified with the following quantum number n=3, l=1, m=0?
MEDIUM
The correct set of four quantum numbers for the valence electrons of rubidium atom Z=37 is
EASY
The quantum number of four electrons are given below:
I.  n=4, l=2, ml=2, ms=1/2
II.  n=3, l=2, ml=1, ms=+1/2
III. n=4, l=1, ml=0, ms=+1/2
IV. n=3, l=1, ml=1, ms=1/2
The correct order of their increasing energies will be:
MEDIUM
Consider the hypothetical situation where the azimuthal quantum number, l, takes values 0, 1, 2, ..n + 1. Where n is the principal quantum number. Then, the element with atomic number:
EASY
The group number, number of valence electrons, and valency of an element with atomic number 15, respectively, are:
EASY
The number of subshells associated with n=4 and  m=-2 quantum numbers is:
HARD
Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number l=4 is.
EASY
The difference between orbital angular momentum of an electron in a 4f-orbital and another electron in a 4s-orbital is
EASY
Two electrons occupying the same orbital are distinguished by:
EASY
The angular momentum of electron in d-orbital is equal to
EASY
The orbital angular momentum of an electron is 2s orbital is
EASY
How many electrons can fit in each orbital for which n=3 and l=1?
MEDIUM
Which of the following is an incorrect set of quantum members?
MEDIUM
The number of orbitals associated with quantum numbers n=5,ms=+12 is:
EASY
Which of the following electronic configuration is not possible?
EASY
The maximum number of electrons in an atom in which the last electron filled has the quantum numbers n=3, l=2 and m=-1 is
EASY
Which one of the following electronic arrangements is absurd?
MEDIUM
Which of the following combination of statements is true regarding the interpretation of the atomic orbitals?

(A) An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.

(B) For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number.

(C) According to wave mechanics, the ground state angular momentum is equal to h2π .

(D) The plot of ψ Vs r for various azimuthal quantum numbers, shows peak shifting towards higher r value.
MEDIUM
Which one of the following statements is wrong?
EASY
Which is the correct order of increasing energy of the listed orbitals in the atom of titanium?

(At. No. Z = 22)