doubly charged ion
51Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
52isotope — isotopic /uy seuh top ik/, adj. isotopically, adv. /uy seuh tohp /, n. Chem. any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in… …
53Linear motor — A linear motor or linear induction motor is essentially a multi phase alternating current (AC) electric motor that has had its stator unrolled so that instead of producing a torque (rotation) it produces a linear force along its length. The most… …
54Calcite — A one inch Calcite Rhomb that shows the Double image refraction property. General Category Carbonate mineral …
55Helion (chemistry) — A helion is a short name for the naked nucleus of Helium, a doubly positively charged helium ion . In practice, helion refers to the stable helium 3 nucleus, in opposition to the other stable nucleus helium 4, which is usually referred to as an… …
56Eastern Orthodoxy — the faith, practice, membership, and government of the Eastern Orthodox Church. * * * officially Orthodox Catholic Church One of the three major branches of Christianity. Its adherents live mostly in Greece, Russia, the Balkans, Ukraine, and the… …
