J.J. Thomson is known for his discovery of the electron in 1897. Thomson's discovery led him to create a model of an atom called the plum pudding model. The diagram shows the plum pudding model. Today, the plum pudding model is considered an inaccurate representation of an atom because an atom contains a

Question

A. negatively charged central core with electrons moving around the outside of the central core.
B. positively charged central core with electrons moving around the outside of the central core.
C. positively charged central core with neutrons moving around the outside of the central core.
D. negatively charged central core with protons moving around the outside of the central core.

Answer 1

The correct answer is:

B. positively charged central core with electrons moving around the outside of the central core.

This reflects the modern understanding of the atomic structure, where the nucleus (the central core) contains protons and neutrons, and electrons move around the nucleus.