Determine the frequency of light with a wavelength of 2.672 x 10^-7cm

Stage in which a typical star has completely stopped fusion

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons