Which of these statements is true? A. The neutrons have a neutral charge and help stabilize an atom
B. The electrons have a negative charge and are in the nucleus
C. The protons have a negative charge and are in the nucleus
D. The electrons have a positive charge and orbit the nucleus in the electron cloud

Among these statements B is the correct answer.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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.