"<em>The elements [on the periodic table] in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. </em><em>They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.</em>"
The light is on the right side of the moon from Earth's perspective. The light will never be on the bottom or top. Its either waxing or waning; left or right
