The correct option is C. A Lewis dot diagram is a representation of the valence electron of an atom, which uses dot around the symbol of the atom. Chlorine has seven electrons in its outermost shell, these seven electrons are arranged in form of dot around the atom of chlorine. If you count the number of dot given in option C, you will notice that they are seven.
C. Cl (w/ 2 dots above and to the left of the C, 1 underneath, and 2 dots to the right of the 1).
Explanation:
Hello,
Electron dot structure is related with the Lewis structure showing the valence electrons for a given element. In this case, the involved element is chlorine, whose symbol is Cl, which is located at the group VIIA, it means that it has seven valence electrons (the number of electrons at its outer shell) around it when expressing the aforesaid structure which is arranged as described on the C. option, this is substantiated via the attached picture showing such arrangement.
Explanatio(3) Atomic masses are a weighted average of the naturally occurring isotopes.
(3) Atomic masses are a weighted average of the naturally occurring isotopes. is the best statement for why most atomic masses on the Periodic Table are decimal numbers.
