The electrical charge of the hydrogen atom is thought to be exactly zero. This is a consequence of the apparent equality of the magnitude of the electrical charges of the electron and the proton, and their opposite sign.
Necklace definition, a piece of jewelry consisting of a string of stones, beads, jewels, or the like, or a chain of gold, silver, or other metal, for wearing around the neck. See more. Dictionary.com
a cut and polished precious stone; gem. 2. a fashioned ornament for personal adornment, especially of a precious metal set with gems. 3. a precious possession. 4. a person or thing that is treasured, esteemed, or indispensable.