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.
Unfortunately, a lot of information on eHow is of very low quality. If you connect a source of electricity with a fixed voltage (constant voltage supply) to a capacitor through a resistor, the capacitor will charge, the current that flows will be initially large but will decrease over time. The formula describes that. $$I = \frac{V}{R}e^{-t/RC} $$.