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
Pendant vs. pendent. Pendent is an adjective meaning hanging, dangling, or suspended. It is often mistakenly used in place of pendant, a noun referring to something suspended from something else, especially a piece of jewelry. Examples. Many have pink flowers that grow in a cluster; in some species the flowers are pendent.