1. Tardigrade
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  3. Chemistry
  4. The number of electrons accommodated in an orbit with principal quantum number 2, is

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Q. The number of electrons accommodated in an orbit with principal quantum number $2$, is

J & K CETJ & K CET 2007Structure of Atom

Solution:

The number of electrons $=2n^{2}$ where, $n=$ principal quantum number. For, $n=2$ Number of electrons $=2(2)^{2}=8$