What does the VSEPR theory describe? A. Why a full octet of valence electrons makes an atom stable
B. Which atoms are more electronegative than others
C. Why molecules have different shapes
D. How atomic radii change during bonding

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium