Advertisement. An intranet often gets confused with the Internet. While there are a lot of similarities between them, they really are two different things. Simply put, the Internet is the global World Wide Web, while an intranet is a private computer network operating within a company.dvertisement. An intranet often gets confused with the Internet. While there are a lot of similarities between them, they really are two different things. Simply put, the Internet is the global World Wide Web, while an intranet is a private computer network operating within a company.
Science Chemistry for Kids. An element is a pure substance that is made from a single type of atom. Elements are the building blocks for all the rest of the matter in the world.
isotope. a chemical element having the same atomic number as another (i.e. the same number of nuclear protons), but having a different atomic mass (i.e. a different number of nuclear neutrons). radioactive isotope. one having an unstable nucleus and which emits characteristic radiation during its decay to a stable form.