Atomic Structure Assignment (Question 2-answer)

 Q2)Draw the atomic structure of a sodium atom and a sodium ion....explain why you draw it this way.

-Sodium is in Group I. The sodium atom is drawn this way as its electronic configuration is (2.8.1). It has only 1 electron on its valence shell (outermost layer/last shell).
sodium atom (image) credits to: http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr/periodic_table/ionsrev1.shtml

-The sodium ion is drawn in this way as it lose 1 electron on the valence shell and become stable, which means that its electonic configuration is (2.8)-> Na⁺
sodium ion (image) credits to: http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr/periodic_table/ionsrev1.shtml