The melting point of bronze alloys vary depending on the ratio of copper to other metals. The range of melting point temperatures ranges from 1,190 to 1,675 degrees Fahrenheit. Metals such as aluminum, manganese, tin, arsenic and lead are combined to form different bronze alloys.
The alloy of copper and zinc is historically referred to as brass instead of bronze. The discovery of an alloying another metal with copper to create a more durable material during the Chalcolithic period was a revolutionary technological improvement. The earliest known bronze items have been dated to 4500 B.C., originating in Serbia. Other sites in Iran and Iraq have yielded bronze artifacts that are at least five centuries younger.Learn More
Silver is usually obtained as a by-product of the process of purifying other metals such as copper, lead and zinc. Silver can also be collected from refining gold or from silver ores. It is usually separated from its ores using a flotation process and then purified by smelting.Full Answer >
Metals have luster, are malleable and ductile, conduct heat and electricity and may combine with other metals; nonmetals, in contrast, have little or no shine, are neither malleable nor ductile, do not conduct heat or electricity and exist as molecules in their most basic forms. Metals and nonmetals occasionally share overlapping characteristics, particularly elements located proximately on the periodic table of elements. However, most embody these characteristics, which are used to classify and categorize elements into the categories of metals and nonmetals.Full Answer >
Calcium, as a metal, is used as a reducing agent in preparing other metals and as an alloying agent. Calcium compounds are widely used to build stone, to make cement, as a soil conditioner and in water treatment to reduce acidity. It is also essential to all living things because it is the main component of bone.Full Answer >
According to About.com expert Dr. Anne Marie Helmenstine, the simplest way to determine if an element is a metal is to see if it appears with the other metals on the periodic table. There are 117 non-theoretical elements on the periodic table, and all but 17 are either metals or metalloids. Scientists also use chemical experiments to determine if a sample of indeterminate nature contains metal ions.Full Answer >