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
neck. 1  that part of a human or animal joining the head to the body, including the part of the backbone between the skull and the shoulders. 2  a narrow part between the head, or end, and the body, or base, of any object: the neck of a violin, the neck of a goblet.