Atomic Structur...

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.

Q. Which is a possible set of quantum numbers for a valence unpaired electrons in ground state atom of phosphorus (Z = 15)?

For a multi-electron atom, set of quantum numbers is given as

2,0,0,1/2 ; 2,0,0,-1/2

Q. Thus, the next higher allowed set of n and / quantum numbers for this atom in its ground state is

Magnetic moments of the following isoelectronic species (24 electrons) are in order

The orbital angular momentum for a d-orbital electron is given by

The number of radial nodes in 3s and 2p respectively are

A hydrogen like species in fourth orbit has radius 1.5 times that of Bohr's orbit. In neutral state, its valence electron is in

Following suborbits with values of n and l are given

Q. Increasing order of energy of these suborbits is

The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is

[JEE Main 2013]

For Cr(24), (EC) : [Ar] 4s¹ 3d⁵ The number of electrons with l = 1 to l = 2 are respectively

Last filling electron in lanthanides find place in 4f-orbital. Which of the following sets of quantum number is correct for an electron in 4f orbital?

Quantum Numbers are solutions of _____________

Which quantum numbers gives the shell to which the electron belongs?

Direction (Q. Nos. 18) Choice the correct combination of elements and column I and coloumn II  are given as option (a), (b), (c) and (d), out of which ONE option is correct.

Q. Match the entries in Column I with correctly related quantum number(s) in Column II