AnettBorges390 AnettBorges390
  • 09-01-2020
  • Chemistry
contestada

How many electrons are there in second principal energy
level(n=2) of a phosphorus atom?

Respuesta :

Mergus Mergus
  • 09-01-2020

Answer:

8 electrons

Explanation:

Phosphorous is the element of group 15 and third period. The atomic number of chlorine is 15 and the symbol of the element is P.

The electronic configuration of the element phosphorus is:-

[tex]1s^22s^22p^63s^23p^3[/tex]

Thus, from the electronic configuration shown above,

In n = 2, the total number of electrons are 8 which are present in [tex]2s^22p^6[/tex]

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