Atomic Structur...

Direction (Q. Nos. 1-12) This section contains 12 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.

Q. 

Radial wave functio ns (R) of different orbitals are plotted. Which is/are correct graphs?

For 2s-orbital electron, radial probability density R² as function of r (distance) is given by

For an electron in 2p-orbital, radial probability function 4πr²R² as a function of r is given by

C onsider the following figures A and B indicating distribution of charge density (electron probability ) with distance r

Select the correct statement(s). 

Select the correct statement(s).

Which orbital gives an electron, a greater probability being found close to the nucleus?

Hamiltonian operator is the sum of two energy operators. These are

Angular nodes in 4s- suborbit is equal to radial nodes in

at any point is proportional to

There is formation of in all five nodes (including terminal nodes) in a string of 12 cm. Thus, wavelength of the waves formed is 

For x -axis , wave function () can be written as

Thus, Schrodinger wave equation along x-axis can be written as : 

The Schrodinger wave equation for H-atom is 

where, a₀ is Bohr’s radius. If radial node in 2s is at distance r₀, then