CaO is the chemical formula for quick lime
<span> some unique properties about ice that differ from liquid water to water vapor are that it is a solid, not a liquid or gas. It also expands. </span>
The answer is D or 4,3,2!
Answer: option B) proton-electron.
The particles inside a salt crystal are ions. The electrostatic attraction between the positive ions are the negative ions is responsible for the crystal structure. In last stay, the protons are responsible for the positive charge and the electrons for the negative charge. Then you can say that the interaction proton-electron is responsible for the force of attraction between the particles in a salt crystal.