In models of moecules, spheres of different colors and sizes represent different types of atoms. Which model shows a molecule of a substance that is made up of three elements?

Me i dont know what to do! 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.

Which sample at stp has the same number of atoms as 18 liters of ne at stp

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion