Which of the following describes the molecules in a solid?

Question: Which of the following describes the molecules in a solid?

(A) The molecules are compact and close together. 

(B) The molecules are spread out and have lots of energy. 

(C) The molecules can easily be moved through. 

(D) The molecules are spread out some, but less than a gas. 

One way to understand the states of matter is to look at how the molecules are arranged and how they behave. In a solid, the molecules are tightly packed and have very little room to move. They vibrate in fixed positions and maintain a definite shape and volume. The correct answer to the question is (A) The molecules are compact and close together.