Question

How is the Bohr atomic model different from the plum-pudding model?
A. In Bohr's model, the atom's mass is found at its center instead of
distributed throughout.
B. In Bohr's model, the atom's mass is mostly made up of electrons
instead of protons.
C. In Bohr's model, the volume of the atom is mostly made up of the
nucleus.
D. In Bohr's model, the atom consists of positive charges circling a
negatively charged nucleus.

Answer 1

Answer:

A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout.

Explanation:

The Plum-Pudding model of an atom was  proposed by the late J.J Thompson. In this model, an atom is seen as negative charged particles that are surrounded by a soup of positive charge, which was liken to Plum Pudding, an English dessert.

While in Bohr's model of an atom; negatively charged electrons move in clearly defined circular orbits around the atom's mass (positively charged), called Nucleus.

Answer 2

The Bohr's model has been consisted of the central atom's mass. Thus option A is correct.

Atom has been smallest particle of matter has been consisted of electrons, protons, and neutrons as the subatomic particle. The structure of atom has been postulated with different theories and model.

Thomson's Plum Pudding Model has been the first model for elucidating the structure of the atom.

According to Thomson, the atom has been consisted of central positive nucleus with electrons present outside the nucleus in the distributed model. The structure has been similar to English dessert Plum and has been named as Plum pudding model.

The Bohr's atomic model has been the most accepted with the nucleus has been a small entity in the atom. The electrons have been supposed to be present in the atomic orbitals, and revolves around the nucleus. The model resembles solar system.

The Bohr's model has been different from the Plum pudding model as in Bohr's model, atoms have been consisted within the orbitals consisting of negative charged electrons and are revolving around the positive nucleus.

The atomic mass of the atom has been consisted in the central nucleus. Thus, option D is correct.

For more information about the atomic model, refer to the link:

https://brainly.com/question/1596638