Which statement best explains why a wet saw used to cut through a fine optical crystals is constantly lubricated with oil

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

1 is a answer of a question