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.
It helps your skin to get rid of all kind of impurities. Baking soda is extremely easy to use and easily available in any general store. Here are the steps to make baking soda paste for treating blackheads: â Mix two to three teaspoons of baking soda with 1 teaspoon of mineral water.ere is the step to use oatmeal for blackheads; â Mix one to two teaspoon honey with tomato juice and oatmeal. â Scrub the paste on your skin and wash after 10 minutes. â Repeat the process regularly for 10 days to get clear skin.