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.
COMMUNITY FORUM. Asbestos Floor Tile and Black Mastic. I purchased a house built in 1965 last year and the basement has leaked for the past 10-15 years on and off. As such, many of the floor tiles have become very loose and popped up off the floor. I know from neighbors that they are asbestos tiles (9x9) and since I have some ambition to renovate the 1500 sq. ft. basement, I have already started to remove some of the tiles.