ALL PRICES ARE BASED ON GAMES THAT WORK 100%. THE PRICE GUIDE DOES NOT INCLUDE FULLY RESTORED MACHINES. AS YOU KNOW THE RESTORATION OF MACHINES IS VERY EXPENSIVE AND CAN DOUBLE OR TRIPLE THE VALUE OF A GAME. NEW MONITORS, NEW SIDEART, NEW OVERLAYS, ETC CHANGE THE PRICE OF GAMES.
Report Abuse. elements on the right side on the periodic table are unreactive, elements on the left are very reactive. The most unreactive elements are therefore the Noble gases.
The highest occupied electron shell is called the valence shell, and the electrons occupying this shell are called valence electrons. The chemical properties of the elements reflect their electron configurations. For example, helium, neon and argon are exceptionally stable and unreactive monoatomic gases. Helium is unique since its valence shell consists of a single s-orbital.