Answer:
Solid(?)
Explanation:
In a solid, the molecules are tightly packed due to their strong intermolecular forces of attraction. The inter-molecular space is negligible and the molecules are only about vibrate about their mean positions. That is why solids are rigid and they have a definite shape and size. They even can't flow.
In a liquid, the molecules are not so tightly packed and are free to move freely within the boundary of the container they are stored in. They have more intermolecular space than solids and less intermolecular force of attraction than solids. They have more kinetic energy than on solids. They can flow and are not rigid to touch. They do not have a definite shape or size.
In general, solids are denser than liquids, which are denser than gases. . The particles in the solid are touching with very little space between them. The particles in a liquid usually are still touching but there are some spaces between them. The gas particles have big distances between them.
Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. Their vibration is related to their kinetic energy. In the solid the particles vibrate in place.
Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container. The attractive forces between particles are strong enough to hold a specific volume but not strong enough to keep the molecules sliding over each other.
Gas – In a gas, particles are in continual straight-line motion. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other. In most cases, there are essentially no attractive forces between particles. This means that a gas has nothing to hold a specific shape or volume.
