Basic+&+Atomic+information-Potassium-Ahmed



Atomic Information:
 * Potassium has an atomic number of 19
 * Its atomic mass is 39.10
 * It is located in 3rd row and first column in the periodic table
 * The atom has 2 electrons in the first shell, 8 in the second shell, 8 in the third and 1 in the last shell
 * The necleus has 19 protons, 20 neutrons and 19 electrons

** || 5 ||  ||   ||   || ** || Sir Davy in 1807 || This table illustrates some basic information about the element. Basic information:
 * **Atomic number ** || 19 ||
 * **Atomic mass ** || 39.0983 g.mol -1 ||
 * **Density ** || 0.86 g.cm -3 at 0 °C ||
 * **Melting point ** || 63.2 °C ||
 * **Boiling point ** || 759 °C ||
 * **Isotopes
 * **Discovered by
 * Potassium is a solid at room temperature.
 * It belongs to the group alkali metals.
 * It is a very reactive element which reacts extremely violently with water.
 * It is therefore stored under oil to prevent it from reacting with water vapor in the air.
 * Potassium is also the eighth most abundant element on Earth.
 * Potassium is a soft and white metal.
 * It is silvery when cut but quickly oxides.

Below is a color coded diagram of Bohr's model for a potassium atom == To next Page