If the statement is false,then correct the mistake(Ex:Water is a solid true or false. False.Water is a liquid)

1: True or False: It is not possible to destroy matter through a chemical reaction

2:True or False:The number of electrons in the atom determine its atomic number

3:True or False:Neutrons have the smallest mass and are very tiny compared to electrons and protons.

If this is your homework question, I'd suggest you also read the chapter for your own good and better understanding of the material. Anyway, here are the answers:

1) True. Law of conservation of mass/matter states that mass/matter cannot be created nor destroyed.

2) False. The number of protons determine the atomic number.

3) False. Electrons have the smallest mass and are very tiny compared to neutrons and protons.