(03.01 mc)
which of the following statements does not describe the structure of an atom?
a. an atom has a small, dense center called the nucleus.
b. inside the nucleus of an atom are protons and electrons.
c. protons are positively charged sub-atomic particles.
d. electrons are negatively charged sub-atomic particles.

b.  Inside the nucleus of an atom are protons and electrons.

Explanation:

Instead, the nucleus of an atom contains both protons (+ charged, positive) and neutrons (with no charge, neutral). Electrons orbit the nucleus with a negative charge.

Please let me know if you have any other questions about this or anything else.

Thanks!