Metalloids exhibit the physical and chemical properties of both metals and non-metals on the periodic table. They may display certain properties of metal or non-metals when reacting with certain chemicals.Know More
The physical properties of metalloids are those that can be observed without any change to the metalloid itself. This includes the material's luster, elasticity, conductivity and color. Metalloids are solid semi-conductive materials and react differently based on the element to which they're exposed.
For example, boron is a metalloid that acts as a non-metal with sodium, while acting as a metal when exposed to fluorine. The variations in density, boiling points and melting points of metalloids greatly affect their reactions to external influences.Learn more about Geology
Copper is in group 11 on the periodic table, along with silver and gold. There is also one other element that theoretically belongs in this group, roentgenium, which has a half life of 26 seconds and has only ever been formed under laboratory conditions.Full Answer >
Metal extraction from ores occurs in many different ways involving physical, chemical and electrical means. Even ores of the same metal sometimes require different methods of separation depending on the concentration of the metal and its chemical composition within the ore.Full Answer >
Most bronze is made out of a mixture of copper and tin. However, some modern versions of bronze substitute the zinc for aluminum, manganeseor zinc.Full Answer >
The six elements in the alkaline earth metals group all have a variety of different uses, including making batteries, flashbulbs, fireworks, fertilizers and various metal alloys. The six alkaline earth metals are calcium, magnesium, barium, beryllium, radium and strontium.Full Answer >