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
1. (Crafts) a small usually spherical piece of glass, wood, plastic, etc, with a hole through it by means of which it may be strung with others to form a necklace, etc. 2. a small drop of moisture: a bead of sweat.