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 string or chain of flowers, foliage, ribbon, etc., suspended in a curve between two points. 2. a decorative representation of this, as in architectural work or on pottery. 3. a fabric suspended, draped, and bound at intervals to form graceful loops or scalloped folds. 4. Dentistry. the garlandlike area of the gums surrounding the necks of the teeth.