In which phase(s) of matter are the atoms closely packed but still able to slide past each other? gas liquid solid and gas liquid and solid

Option (b) is the correct answer.

Explanation:

In solids, molecules are held together by strong force of attraction. As a result, they are held closer to each other but they are not able to slide past each other.

Whereas in a liquid molecules are slightly away from each other as they are not held together by strong intermolecular forces. But the molecules are able to slide past each other.

On the other hand, in gases molecules are held by weak Vander waal forces and move rapidly. Therefore, molecules are far away from each other and quickly slide past each other.

Thus, we can conclude that in liquid phase of matter are the atoms closely packed but still able to slide past each other.

Option (b) is the correct answer.

Explanation:

It is known that in liquids, the molecules are held by less strong intermolecular forces of attraction as compared to solids.

Because of this the molecules have medium kinetic energy and they are able to move from their initial position.

Hence, molecules of a liquid are able to slide past each other.

On the other hand, in a solid substance the molecules are held together by strong intermolecular forces of attraction and they are not able to move from their initial position.

Hence, solids have a fixed shape and volume.

In gases, molecules are held together by Vander waal forces. Hence, they have high kinetic energy and they are able to move freely from one place to another.

Thus, we can conclude that in liquid phase of matter the atoms are closely packed but still able to slide past each other.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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