Home › Forums › setting the stage › solids as quantum systems › Answers to the questions from the video This topic has 0 replies, 1 voice, and was last updated 2 weeks, 6 days ago by Tomas Verbist. Viewing 1 post (of 1 total) Author Posts September 23, 2025 at 6:08 pm #13003 Tomas VerbistParticipant A solid is a material with a defined structure of atomic nuclei and electrons, where the coordination of the nuclei does not change. A hydrogen atom Two hydrogen atoms separated by a wall A hydrogen molecule d = 0 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