Does the nucleus have more mass than the electron clouds

The boiling point of liquids is very high what does it indicate

What three natural resources are found in the great lakes region

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?