What is a radical?

a group of ions that have no charge

a group of ions that break up during a reaction

a group of atoms that give off radiation

a group of atoms that act like one atom

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water