Crossword Puzzle CW - MoleculesOnline version assignment by Benjamin D Morgan 1 Why atoms in a molecule stick together (bond) (2 words) 2 Rings where electrons are found orbiting the nucleus of an atom (2 words) 3 the force that holds two atoms together (opposite charges) 4 Why atoms lose or gain electrons in the outermost energy level 5 Substance made of two or more atoms bonded together due to their charges 6 negative charged particle 7 positive charged particle 8 Basic unit of matter made up of protons, neutrons, and electrons 9 Atoms become this when they lose or gain an electron from the outermost energy level 1 2 8 5 9 7 4 6 3