Important Facts about Metals and Non-metals
1. What is the best conducting metal?
· Silver is the best (followed by Copper and then Gold).
2. What is the worst/least conducting metal?
· No metal has been declared to have the worst conductivity although Tin has a conductivity range of about 15%.
3. What is the least abundant metal?
· The least abundant metal is Iridium, followed by Gold, Rhodium, Palladium, Platinum and Silver.
4. What metal has the highest melting and boiling point?
· The metal with the highest melting and boiling point is Tungsten. It’s often referred to as Wolfram in other parts of the world. It’s extracted from Wolframite, it’s grey and white in colour and is extremely hard and amazingly dense.
5. What metals have the highest and lowest density?
· The metal with the highest density is known as Osmium comprising a density of 22.61 g⁄cm³. This is slightly greater than the next dense metal, Iridium. The metal with the lowest density is Lithium, 0.53 g⁄cm³.
6. What is the most consumed metal in the world?
· Steel (iron) is the most widely used metal in the world.
7. What is the least consumed metal in the world?
· According to several references, it has come to be known that Tin is the least consumed metal in the world .
8. What is the least and most abundant non-metal?
· The most abundant non-metal in the universe is Hydrogen as it makes up ¾ of all matter. Although the most abundant non-metal in the earth is Oxygen. The least abundant non-metal is Astetine.
9. What is the most abundant metal in the human body?
· The most abundant metal in the body is Calcium (Ca). It’s a dull grey-colored alkaline metal. In the human body it’s found in both ionic form (necessary for metabollic functions) and in its more familiar bones and teeth form as hydroxylapatite- mineral form of Calcium that comprises half the weight of our bones and most of our teeth.