An atom has the electron configuration 1s22s22p63s23p5. The electron dot symbol(Lewis dot Symbol) for this element is –

Answer:
From  the electron configuration of 1s22s22p63s23p5,we can see that this atom has 17 electrons.We know that in a neutral atom the number of electrons is equal to the number of protons.So this atom has 17 protons which indicates that this atom is chlorine whose atomic number is 17.


From  the electron configuration of the atom 1s22s22p63s23p5,we also see that its outermost shell is the third shell(3s23p5) and it has 7 valence electrons.

To draw the electron dot symbol or Lewis dot symbol of this atom,we need to only consider the valence electrons.

An atom has the electron configuration 1s22s22p63s23p5. The electron dot symbol(Lewis dot Symbol) for this element is


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