the method of separation of components of a mixture with the principle of difference in density of subset is what I) evaporation II) sublimation III) Centrifuging III) Crystallization​

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Which of the following is a physical property flammability heat of combustion solubility and toxicity