Afluorine ion has nine protons and a charge of -1. how many electrons are in an ion the fluorine. a. 1 b. 9 c. 10 d. 8

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5