Please help! A different element, L, is located in the same row of the periodic table as element E, but L has roughly half the atomic mass of E. Is the atomic radius of L less than, equal to, or greater than the atomic radius of E? Justify your answer using principles of atomic structure.

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.