☰
✕

Structure of Atom
Question
Wired Faculty App

The electrons identified by quantum numbers n and l, are as follows

  1. n =4, l=1

  2. n = 4, l = 0

  3. n =3, l= 2

  4. n = 3, l = 1

If we arrange them in order of increasing energy, i.e., from lowest to highest, the correct order is

  • IV<II<III<I

  • II<IV<I<III

  • I < III < II < IV

  • III < I < IV < II

Answer

A.

IV<II<III<I

Reason:

(i) More be the sum of n + l → more be the energy.

(ii) For the

same sum, the more value of n, have higher energy.

Because, n + l for →

(a) 4 + 1 = 5
(b) 4 + 0 = 4
(c) 3+ 2 = 5
(d) 3+1 = 4

therefore, correct order is (iv)<(ii) < (iii) < (i)

Sponsor Area

Some More Questions From Structure of Atom Chapter

What are the fundamental particles present in a neutral atom having atomic number greater than 1?

Do protons and neutrons have identical mass?

When α-particles are sent through a thin metal foil, most of them go straight through the foil. What inference do you draw from it?

What did Rutherford's experiment on scattering of particles show for the first time?

What is Plum-Pudding model of the atom?

Are neutrons present in all atoms?

Why are electrons called planetary electrons?

What are nucleons?

When is the number of protons and electron same in an atom?