Which scientist proposed the model of an atom as a nucleus surrounded by electrons? james chadwick john dalton j. j. thompson ernest rutherford

The answer is Ernest Rutherford.

The correct answer will be option-Ernest Rutherford.

Explanation:

Atom is the smallest unit of matter which was earlier thought to be indestructible but later new findings suggested that atom contains sub-atomic particles.  

The arrangements of these sub-atomic particles in an atom were represented by many models, best accepted of which is presented by Ernest Rutherford in 1911.

His experimental findings concluded that a dense heavy nucleus is present in the center of an atom which is surrounded by a negatively charged nucleus.

Thus, the selected option is the correct answer.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

the answer is 75.0%.