Another name for the representative elements is the "A elements." These elements are found within the first two families and last six families of the Periodic Table.Know More
The representative elements are found in Groups I and II, which are on the left side of the Periodic Table, and Groups III through VIII on the right side of the table. These elements include the alkali metal group, alkaline earth metals and chalcogens.
The elements in each group share the same characteristics. For example, alkali metals are soluble in water and easily cut with a knife. Alkaline earth metals are harder than alkali metals, and they are not as reactive with oxygen.Learn more about Atoms & Molecules
Sugar is composed of carbon, oxygen and hydrogen. There are 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms in one molecule of sugar, according to Exploratorium, a San Francisco museum of science, art and human perception. The scientific name for sugar is sucrose.Full Answer >
Hydrogen and ununoctium are two examples of the more than 100 elements that have either been discovered in nature or synthesized by scientists. All of the elements are arranged in the periodic table, which organizes the elements based on atomic mass, number of valence electrons, and physical and chemical characteristics.Full Answer >
Elements are classified as metals, nonmetals or metalloids. Noble gases are classified separately, although they are sometimes grouped with non-metals despite having different properties.Full Answer >
The primary element in glass is silica, or silicon oxide (SiO2). However, on its own silica can be difficult to work with since it has an incredibly high melting point of more than 3,000 degrees Fahrenheit and is extremely viscous, which makes it challenging to mold.Full Answer >