10. A "neutral atom" is one that has the same number of and

Protons and Electrons

Explanation:

Protons are positively charged particles in an atom and electrons are negatively charged. These charges cancel out to make a neutral atom. For example, Carbon has 6 protons (+6) and 6 electrons (-6). 6 - 6 is 0, making it neutral.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.