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 cross attached to a necklace by means of a curved bail. Sixth or seventh century. From the collection of the Museum of Byzantine Art, Berlin. A bail (also spelled bale) is a component of certain types of jewelry, mostly necklaces, that is used to attach a pendant or stone. The bail is normally placed in the center of the necklace where the pendant hangs. Some bails are made so a pendant can be attached after the necklace production is completed.