Ernest Rutherford discovered that atoms were mostly:
Negatively charged
Positively charged
Electrons
Empty space

The answer is positively charged.

Explanation:

The Rutherford model supplanted the atomic model of English physicist Sir J.J. Thomson, in where the electrons were set in a positively charged atom.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

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.