Thorium-232 undergoes radioactive decay until a stable isotope is reached. Write the reactions for the chain reaction. There are eleven (11) steps beginning with ELECTRON CAPTURE. Each product
becomes the reactant of the next decay. Name the final stable isotope using LONGHAND
NOTATION

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