What would you expect the charge on a bromide ion to be? Why?
Use your own words please

Can Make To become an ion, an element has to gain or loose electrons. If it gains electrons, it receives a negative charge because it then has more electrons than protons. This is known as an anion. If it looses electrons, it receives a positive charge because it has more protons than electron

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".