Answer: b. Electrons are scattered in an atom
Explanation:
Postulates of Dalton's atomic theory:
a) Atom are indivisible and are the smallest unit of any matter.
b) Atoms of same element have same mass.
c) Atoms of different elements differ in mass.
d) Elements combines with each other in whole number to form compounds.
Electrons are scattered in an atom which was given by J.J Thomson in his plum pudding model.
Thus the modification to Dalton's original atomic model is Electrons are scattered in an atom
