Quiz Answer Key and Fun Facts
1. This metal is silver-white in colour, developing a slightly yellow/pink colour upon exposure to air. It is widely distributed on earth, and occurs in over 800 known minerals. Its oxide is used in the production of high intensity lights.
2. This metal, steel-gray in colour, is one of the lightest of all metals. Both the metal and its salts are highly toxic, and must be handled with extreme caution. When alloyed with copper, it is extensively used in springs and electrical contacts.
3. This metal is silvery-white in colour, and is easily polished to a high shine. It is hard, malleable and ductile, and is a reasonable conductor of both heat and electricity. It is used extensively in the production of stainless steel, and other corrosion resistant alloys.
4. This metal is the fifth most abundant element in the earth's crust, and is an essential constituent of leaves, shells, bone, and teeth.
5. This metal is extensively used with other metals to produce alloys, particularly in die-castings. It is used to "galvanize" metals, to prevent corrosion.
6. This metal is mostly used in plating, to produce a hard, easily polished surface. Combined with lead, it produces a yellow pigment.
7. This metal has a melting point of 1084C. It is widely used as an agricultural poison, and as an algaecide in the purification of water. In its pure form, it is reddish-brown in colour.
8. This bluish-white metal is extremely hard and brittle, and is used almost entirely, to make the very hard alloys used in fountain pen nibs, phonograph needles, and instrument pivots.
9. This metal itself is not toxic, but most of its salts are. It has a melting point of 961.8C, is highly ductile and malleable, and is widely used to make jewellery and ornaments.
10. This metal is soft, malleable, and ductile. It is a poor conductor of electricity, and is very resistant to corrosion. Many ancient articles manufactured from this metal have survived over 2000 years.
Source: Author
delboy22
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crisw before going online.
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