What minimum frequency of light is required to ionize potassium?The energy required to ionize potassium is 419kJ/mol? Chemistry The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34 x 10-19 J.
This video shows how to remove black mastic or carpet glue of concrete floor using FranMar's Bean-e-doo mastic remover. This is an easy and safe way to remove black mastic without toxic fumes. for more information visit www.sealgreen.com.1  Howto & Style. 2  Standard YouTube License.his video shows how to remove black mastic or carpet glue of concrete floor using FranMar's Bean-e-doo mastic remover. This is an easy and safe way to remove black mastic without toxic fumes. for more information visit www.sealgreen.com. 1  Howto & Style. 2  Standard YouTube License.
1 Scrub it on your skin to get rid of blackheads. 2  Wash it off following 10 minutes. 3  Repeat regularly for clear skin. 4  You can likewise make a paste by mixing together three tsp. of yogurt, few drops of lemon juice, two tsp. of oatmeal, and few drops olive oil. The blend of oatmeal and yogurt is incredible to get rid of blackheads. 2  Mix one teaspoon honey and the juice of four tomatoes in sufficient oatmeal to make a paste. 3  Scrub it on your skin to get rid of blackheads. 4  Wash it off following 10 minutes.