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

    periods.

  • 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


Citations