After burning for three hours, a candle has lost half of its mad. explain why this example does not violate the law of conversation of mass.

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

The correct answer is c. orbital shape. "the angular momentum quantum number l describes the shape of an orbital. it corresponds to each orbital type, i.e. (0,1,2,−1)=(s,p,d,f,g,"