solid Home › Forums › setting the stage › solids as quantum systems › solid This topic has 0 replies, 1 voice, and was last updated 2 days, 23 hours ago by Mark_Praise. Viewing 1 post (of 1 total) Author Posts September 7, 2026 at 4:55 pm #14879 Mark_PraiseParticipant A solid is a state of matter whose atoms are at a fixed position, and also they are very closely packe in a volume 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