| Great quiz idea. However. Including oxygen is bound to cause confusion. It could be any of the following: Hydrogen, Helium, Nitrogen, Oxygen, Neon, Argon, Krypton, Xenon or Radon in liquid form. They are clear gases and liquids. You need a better picture of Bismuth. Bismuth is a silver shiny metal. That is a diagram of a crystal of it. |