Compare the energies of 1 s and 2 s subshells. Which one has lower energy?

Among the 3d & 4s sushells which has higher energy?

Among the 3s & 3p subshells which has higher energy?

Which radiations has largest energy?

Write names of subshells in accordance with increasing energy level.

Which has the maximum lattice energy?

Write down the subshells in the increasing order of their energies.

a. When energy of eleçtron is to be taken to zero? b. Which of the following orbitals are not possible? Give reasons 3 s, 1 p, 4 f, 2 d

There are subshells in shell around the nucleus? a. What is the number of electrons that can be accmodated in d shell? b. Write the possible subshells in 3rd shell in the increasing order of energy.

For an atom or ion having single electron, compare the energies of the following orbitals: S_(1)= a spherically symmetrical orbital having two spherical nodes. S_(2) = an orbital which is double dumb-bell and has no radial node. S_(3) = an orbital with orbital angular momentum zero and three radial nodes. S_(4) = an orbital having one planar and one radial node.