According to the octet rule, an atom with two electron shells is most stable when it contains eight
a. isotopes.
b. electrons.
c. neutrons.
d. protons.

According to the octet rule, an atom with two electron shells is most stable when it contains eight electrons. The answer is letter B. All atoms wanted to attain a stable energy level equal to that of the noble gases. A noble gas is where all valence electrons in the valence shell is completely filled.

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary