Elaborate on the nuclear model of the atom. A. The nuclear model describes the atom as protons and neutrons distributed throughout a sea of electrons.

B. The nuclear model describes the atom as electrons uniformly scattered in a positive cloud of protons.

C. The nuclear model describes the atom as a small, negative center enveloped by a cloud of positive particles.

D. The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.

D

Explanation:

The nuclear model of the atom was proposed by Ernest Rutherford.

In his submission, the atom consists of a dense positive nucleus with electrons moving round this nucleus as planets move round the sun. He likened his model to the solar system. The nucleus is at the center of this system just as the sun is at the center of the solar system.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.