When a police officer uses radar for speed control, the officer is using what kind of eletromagnetic waves?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

How can parts of a solution be separated by chromatography?