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.
To remove excess mastic after the tiles have been removed, soak several cloths in water and lay them over the mastic. Let the water soak into the mastic until it becomes soft. Then, scrape off the remaining adhesive with a putty knife.o remove excess mastic after the tiles have been removed, soak several cloths in water and lay them over the mastic. Let the water soak into the mastic until it becomes soft. Then, scrape off the remaining adhesive with a putty knife.