Which of the following elements has the largest first ionization energy? K , ca , br, kr, or si

What were the success and failures that came to boyle’s excitements?

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form