Alkali Metals Fiesta

Periodic Table Project

Basic Information

  • The reason the Alkali Metals are on the far left side of the periodic table is that they have the same properties and they are the lightest elements in their


  • Alkali Metals have one valance electron
  • Alkali Metals are highly reactive when added to water and can explode
  • These elements are used every day: Hydrogen is used to make balloon floats, sodium is in every day table salt, and potassium is used to form everyday medicines

Element Origins

  • Hydrogen: Discovered in 1766 by Henry Cavendish in The United Kingdom and can be found in the atmosphere, mines, and gas wells
  • Lithium: Discovered in 1817 by Johann Arfvedson in Sweden by passing electricity through molten lithium chloride
  • Sodium: Discovered in 1807 by Sir Humphrey Davy in The United Kingdom by distilling table salt through water evaporation
  • Potassium: Discovered in 1807 by Sir Humphrey Davy in The United Kingdom by mining it from inside the Earth's crust
  • Rubidium: Discovered 1861 by R. Busnen in Germany as a byproduct of lithium production
  • Cesium: Discovered in 1860 by Fustov Kirchoff in Germany and is obtained from pollucite and lepidolite
  • Francium: Discovered in 1939 by Marguerite Derey in France and is obtained from the decay of actinium

Element Origin Maps

Environmental Facts

  • It is estimated that 3 kg of hydrogen escape Earth's gravity every second. When you multiply this by the number of seconds in a year, around 90,000 tonnes of hydrogen leave the atmosphere anally!
  • Sodium can cause extreme damage to the skin and eyes, if exposed, it can dry things out

Brief clip showing how explosive alkali meatals are

Alkali Metals & Water

Melting Points of the Alkali Metals

Melting Points:

  • Hydrogen- 14.01 K

  • Lithium- 453.69 K

  • Sodium- 370.87 K

  • Potasium- 336.53 K

  • Rubidium- 312.46 K

  • Cesium-301.59 K

  • Francium-300 K

Boiling points:

  • Hydrogen- 20.28 K

  • Lithiem- 1615 K

  • Sodium- 1156 K

  • Potasium-1032 K

  • Rubidium- 981 K

  • Cesium- 944 K

  • Francium- 950 K