question 6: based on the reactants, should a protic solvent like ethanol or an organic solvent like dicholoromethane be used

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.

Ineed ! i have no clue how to do this problem.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy