Ever wonder why this colorless, odorless, tasteless non-toxic gas is named strong>Helium? The name Helium comes from a Greek word Helios meaning sun. It was in the Sun that this element was first discovered. In 1868 a French Scientist, Jules Janssen was observing a total solar eclipse. He noticed a bright yellow spectrum and thought […]
What is hydrazine? What is it and why haven’t you heard of it? It is an organic chemical compound that is odorless and flammable. It is a liquid that smells like ammonia since it is derived from the same industrial chemical processes; though the physical properties of this chemical is closer to water.
An element is a pure substance which is made of one type of atom. The atom is distinguished by its atomic number, which is equivalent to the number of the protons located in its nucleus. Every object?solid, liquid or gas?is made of an element or combination of elements. Examples of them include hydrogen, helium, carbon,
Sublimation refers to the process wherein solid object directly transforms into gaseous state without passing liquefaction. There are many substances that are known to undergo this process such as the element iodine. Under extreme temperatures, iodine is converted into a gaseous state without melting first. This process explains the presence of icy cap rings and
