Home › Forums › setting the stage › solids as quantum systems › Definition of solid II This topic has 0 replies, 1 voice, and was last updated 2 months, 3 weeks ago by Cesar Augusto. Viewing 1 post (of 1 total) Author Posts September 23, 2024 at 7:44 pm #11253 Cesar AugustoParticipant A solid is a state of matter characterized by having a defined shape and volume. This is because the particles that compose it—atoms, ions, or molecules—are strongly bound and organized in a specific structure. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In