【 】Chlorine has the electron configuration 1s22s22p63s23p5. How many valence electrons does it have?

Chlorine has the electron configuration 1s22s22p63s23p5. How many valence electrons does it have?

Answer:Chlorine has the electron configuration 1s22s22p63s23p5.
So,it has seven(2 +5 =7) valence electrons.



Explanation:

Chlorine has the electron configuration 1s22s22p63s23p5.
So the outermost shell or valence shell is 3s23p5.

Now count the number of valence electrons present here.It has seven(2 +5 =7) valence electrons.

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