O 3. By comparing the Bohr Models and ionization energies, explain why Potassium (K) is more
reactive than Lithium (LI) and Sodium (Na)?

alkali metals:  hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).  These are (except for hydrogen) soft, shiny, low-melting, highly reactive metals, which tarnish when exposed to air.  The name comes from the fact that when these metals or their oxides are dissolved in water

- decrease the number of plants and animals living in the water.