What element has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d7

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

100 points answer quick 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.

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