As in other autoimmune diseases such as lupus and rheumatoid arthritis, the bodyâs natural ability to attack invading viruses and bacteria goes haywire and mistakenly sees healthy body proteins as enemies. Redness, pain, heat and swelling signal that the immune system is on the warpath.
Formal Charge = [# valence electrons on neutral atom] â [(# lone electron pairs) + (Â½ # bonding electrons)] 1  Valence electrons = corresponds to the group number of the periodic table (for representative elements).  Lone Pairs = lone electrons sitting on the atom. Each electron counts as one and so a pair counts as two.
The SI unit of quantity of electric charge is the coulomb, which is equivalent to about 7018624200000000000â 6.242Ã1018 e (e is the charge of a proton). Hence, the charge of an electron is approximately 3018839800000000000â â1.602Ã10â19 C.y convention, the charge of an electron is â1, while that of a proton is +1. Charged particles whose charges have the same sign repel one another, and particles whose charges have different signs attract.