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Ananya Shree

Class 11th
Chemistry
2 years ago

What is principal quantum number?

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Muskan Anand

2 years ago

The numerals, called principal quantum numbers, indicate energy levels as well as relative distance from the nucleus. A 1s electron occupies the energy level nearest the nucleus. A 2s electron, less strongly bound, spends most of its time farther away from the nucleus.

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