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• Inert electrodes are electrodes that don’t react with the products of electrolysis, such as carbon and platinum.
• Electroplating is the process of depositing a layer of metal on another substance by electrolysis, usually with the anode being the impure metal and the cathode being the pure one.
• Electroplating is used to prevent rusting, improve appearance, protect from corrosion, and for it to look good.
• The object to be plated in electroplating is the cathode.
• A simple cell or electric cell is a device that converts chemical energy to electrical energy.
• In a simple cell, the reactive metal gives up electrons to the less reactive one.
• The further apart two metals are in a reactivity series, the greater the voltage produced in the cell (potential difference).
• The periodic table is arranged in order of increasing atomic numbers, with groups (1-8/1-0) being vertical and periods (1-7) being horizontal.
• The number of electronic shells equals the period number.
• The number of valence electrons equals the group number.
• The elements in group I of the table are called alkali metals (Li, Na, K, Rb, Cs, Fr).
• The elements in group VII of the table are called halogens (F, Cl, Br, I, At).
• The elements in group VIII or 0 are called noble/inert gases (He, Ne, Ar, Kr, Xe, Rn).
• Noble gases are unreactive.