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  • Thank you Geoff for your reply. I am also a chemist. I just want to make sure how we would teach it for students in our chemistry subject. So as i got from you, we teach it as particles ceases and stop moving? 
  • 3 May 2024
    John Oberthier
    S2.4 From models to materials
    Geoff, (not Richard!)  I fear I am becoming more  like my parents everyday, mixing up names of people that I clearly should not mix up....The Richard Thornley videos above must have confused me. John
  • 2 May 2024
    Geoffrey Neuss
    S2.4 From models to materials
    Hi John,  You make a valid point (to Richard?) about HF and BF3 - although fluorine with an electronegativity value of 4 is always a problem with the ~ 1.8 rule of thumb -  but  I'm still not convinced that triangular bonding...
  • 2 May 2024
    Geoffrey Neuss
    Putting Topic S1 into context (1)
    Hello Omar,  I'm a chemist, not a physicist, and the question is hypothetical as absolute zero can never be reached. As I understand it particles at absolute zero would not possess translational or vibrational kinetic energy. All particles...