I looked at the films of all 116 directors who had at least five movies on my list of 2,200 top US-grossing films (1994-2015). The table below shows the 30 directors who make Hollywoodâs longest movies.
A gold alloy that is 50% gold and 50% other metals is 12 karat gold because it is only half pure gold. Alloys used in jewelry making range from 9 karat gold, which is approximately 37% gold, to 24 karat gold, and are required to be stamped and hallmarked according to purity.y mixing gold with other metals, or alloying it, gold is made stronger, which makes it durable enough to wear more often without experiencing wear. A variety of metals are commonly used to alloy gold, including silver, copper, nickel, iron, zinc, tin, manganese, cadmium, and titanium.
the most common metallic elements used in jewelry are gold, silver, platinum and copper. technically speaking, a diamond is an elemental form of carbon, if you want to includ â¦ e that as well.most other jewelry components are compounds or mixtures of different elements.1 person found this useful.Answered. Making Jewelry at Home Making jewelry can be a fun craft and result in a wearable form of artistic expression. 2  For some people, jewelry making can be a good way to make a little extra money. 3  Whatevâ¦. 4  The Periodic Table of Elements Life is sustained by a number of chemical elements.