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 Use nail polish remover. 2  Put soap on it (don't rub it off). 3  Leave it on for a few minutes and then peel it off. 4  Always moisturize your skin after using acetone or any harsh chemicals ,for they remove the skin's natural oils and dry the skin out.5  The rough edge of balsa wood can work as a sandpaper. Neutrogena sunscreen spray. 2  Try using a nail file. 3  Make sure to stop once most of the glue is off, or else you might irritate your skin. 4  Use table salt or granulated sugar and rub your hands together. 5  Put a hard facial scrub on the super glue and peel or wash it off once it drys.