Which event would be impossible to explain by using John Dalton’s model of the atom?An iron atom emits particles when it is struck by light.An oxygen atom combines with two hydrogen atoms to form water.An acid reacts with a base to form salt and water. The atoms in sodium metal react with water

Answer:\(\boxed{\text{A. An iron atom emits particles when it is struck by light.}}\)Explanation:John Dalton viewed the atom as a single particle, so it could not emit another particle when struck by light. A, B, and C are wrong. John Dalton would have regarded these reactions as rearrangements of atoms to form different substances