When magnesium metal is heated in air it begins to release large amounts of heat and light. what kind of a reaction is this an example of?

a. a fusion reaction

b. a fission reaction

c. a combustion reaction

d. an endothermic reaction

c. rb

explanation:

the atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.