Question

a substance is tested in a lab. it is found to maintain a unique shape and is a good conductor of electricity. if it is made up of electrons, protons, and neutrons, what state of matter is this substance most likely to be? gas liquid plasma solid

Explanation:

Step1: Recall properties of states of matter

Gases have no definite shape and volume. Liquids have definite volume but take the shape of the container. Plasma is a highly - ionized state. Solids have a definite shape.

Step2: Consider electrical conductivity

Solids like metals are good conductors of electricity due to the presence of free - moving electrons.

Answer:

D. solid