Light of wavelength 200.0 nm is incident on a metal plate with a threshold wavelength of 400.0 nm What is the energy of the incident photon in electron volts?
2.48 x 10 eV
C. 6.20 eV
IN
b. 0.161 eV
d. 3.10 eV
a.

The closer the atoms are to becoming ionic the more highly dense the negatively charged side gets.

Sink to the bottom. addition of potassium nitrate past it’s dissolution capacity at a particular temperature will cause the extra to just sink to the bottom of the glass.however, if you were to raise the temperature of the solution prior to dissolving it, and then slowly decrease the temperature after the dissolution, you would create a “supersaturated” solution - a solution that has more solute dissolved into it than should be allowed. if you add any extra solute past this, the entire solution would “crystallize,” and this is how you get those cool videos on youtube.