-gas noble sin electrones en los orbitales p -Un elemento que tenga 2 electrones de valencia con los números cuánticos: n= 4,
l =0 y 8 electrones n=3, l = 2
-Dos elementos con 2 electrones 3p desapareados.
-Un elemento con un orbital d lleno y un s semilleno.

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Which substance can be broken down by chemical means