Periodic Table

2. This element is the most abundant in the air of the Earth, when it is liquid it is used to cool things instantly.
3. It was actually discovered in America, and was later brought to Europe, an incredible metal with the atomic number 78.
5. It is one of the most valuable and useful metals, it is used in jewelry and scientific experiments. Has one of the highest melting points.
8. The element was more normally used in the past to travel in the sky from one place to another, but we stopped it because it was very inflamable.
9. It was the fifth radioactive element to be discovered, it is a health hazard and the heaviest gas known. It can only combine with other substances in extreme conditions.
10. This element is the most important for humans, and is used to breathe and form water molecules.

1. This element was discovered in 1807 by Humphry Davy, it’s in the s block and it has a melting point of 63.5 ° C
2. A noble gas that is odorless and colorless, has two-thirds the density of air, its name came from the greek word new, and is used at parties in the dark.
4. This element is the only metal in the liquid phase at room temperature, this is used to make thermometers.
6. Is the second lightest element in the halogens group, is a toxic and corrosive gas that is irritating to the eyes and the respiratory system. Is used in the pools to clean them.
7. A reddish ductile metal that is usually used to make roofs, is placed in the group 11 and when it is at room state is solid.