Platinum Platinum Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term "platino", meaning "little silver". Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements. It has six naturally occurring isotopes. It is one of the rarer elements in Earth's crust, with an average abundance of approximately 5 μg/kg. It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa, which accounts for
Element-reactant-product table Element-reactant-product table An element-reaction-product table is used to find coefficients while balancing an equation representing a chemical reaction. Coefficients represent moles of a substance so that the number of atoms produced is equal to the number of atoms being reacted with. This is the common setup: The layout should eventually look like this, for a balanced reaction of baking soda and vinegar (HCHO + NaHCO = NaCHO + HCO) From this, since the number of reactants for each element equals the number of products for each element, we can tell that each side is balanced in the equation. When a