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An electrical charged atom or group of atoms. What is it

Lewis dot structures were invented by a guy named Lewis. Each dot in a Lewis Structure represents a valence electron, and each atom is denoted with its atomic symbol. To draw a Lewis Structure, start with the atomic symbol in the middle, then put dots around the symbol until all of the valence electrons are represented. Try to envision a box around the atom symbol, and the electrons on each side of the box. The valence electrons should be drawn around the element symbol one on each side before pairing the electrons up. The maximum number of electrons that could be on one side of a Lewis Structure is two, and the maximum number of electrons around an element symbol is eight. To figure out how many valence electrons each element has, use the Periodic Table. Remember, the number of valance electrons for Group A elements is equal to the Group A number the element is in on the Periodic Table.   Explain the Lewis dot model below. What does it mean? Whats its connection to ionic bonds, octet…

Which of these elements would be predicted to form an anion when ionized? a.) sodium b.) barium  c.) oxygen d.) aluminum