Separate samples of methane and nitrogen gas have the same volume and each gas is at the same temperature and pressure. Which of the following statements is correct? a. Each gas has the same mass.

b. The densities of both gases are the same.

c. Molecules of each gas have the same number of atoms.

d. Both gases have the same number of molecules.

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.