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CBSE Class 9 Answered

What are energy levels? How are they designated?

Asked by Topperlearning User | 13 May, 2014, 12:50: PM
Expert Answer

Electrons revolve around the nucleus in a limited number of orbits. These orbits or shells are called energy levels.

These orbits or shells are represented by the letters K, L, M, N, ... or the numbers, n = 1,2,3,4 respectively.

Answered by | 13 May, 2014, 02:50: PM
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