Consider the Following Selected Postulates of Dalton's Atomic Theory

Multiple Choice

Consider the following selected postulates of Dalton's atomic theory:
i. Each element is composed of extremely small particles called atoms.
ii. Atoms are indivisible.
iii. Atoms of a given element are identical.
iv. Atoms of different elements are different and have different properties. Which of the postulates is(are) no longer valid?

A) (iii) and (iv)
B) (i) and (ii)
C) (ii) only
D) (iii) only
E) (ii) and (iii)