Given this electron configuration 1s22s22p5. Determine the atomic number of this element.

The atomic number of this element is 9.


Explanation:


From the electron configuration,1s22s22p5,we get (2+2+5=9) nine electrons.

We know that ,in a neutral atom, the atomic number indicates the equal number of protons and electrons in a atom as the charge of protons is positive and the charge of electrons is negative.So,the above element's atomic number will be 9 and the element is F.

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