Which one of the following is not one of the postulates of Dalton's atomic theory?
a. All matter is composed of atoms, which are indestructible and contain electrons.
b. All atoms of a give element are identical in mass and fundamental chemical properties; the atoms of
different elements are different and have different properties.
c.Atoms of an element are not changed into different types of atoms by chemical reactions.
d. Compounds are formed when atoms of more than one element combine; a given compound always has
the same relative number and kind of atoms.