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28-09-2021
Chemistry

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For a sodium atom, the outermost orbit containing electrons is the
1- first orbit
2- second orbit
3- third orbit
4- fourth orbit

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Аноним Аноним

28-09-2021

3rd orbit

How?

Sodium has Atomic number(Z)=11

Let's look at Electronic configuration of Sodium

[tex]\\ \sf\longmapsto 1s^22s^22p^63s^1[/tex]

Final orbital is 3s .

Hence proved

Answer Link

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