1 4,18. 2  Shingles in caused by the same virus that causes chickenpox-varicella-zoster virus. 3  Shingles is a painful infection of the nerve supplying an area of skin and is accompanied by a localised skin rash.
The electrons on the outermost energy level of the atom are called valence electrons. The valence electrons are involved in bonding one atom to another. The attraction of each atomâs nucleus for the valence electrons of the other atom pulls the atoms together.
Noble Gases c. Halogens b. Alkali Metals d. Alkaline Earth Metals. Weegy: Noble Gases has a stable number of electrons in their outer energy level. User: The energy levels of an atom are occupied by ____. a. electrons c. neutrons b. protons d. ions. Log in to see link for more information.