Chemistry 201, 2020-21

Teacher: Mark Lukin

Time: Sunday 1:00PM - 1:45PM
Grades: 9-11


These homeworks are copyrighted material, posted here for use by SchoolNova students and parents. Everyone else is welcome to print a copy of these materials for their personal use; any redistribution or commercial use is prohibited

  • Assigned on 09/20:
    No homework for today
  • Assigned on 10/4:
    Using the method that we discussed in the class, calculate the average distance between an electron and hydrogen atom's nucleus. To obtain all needed data (electron charge, Coulomb constant, electron mass, Plank's constant), go to
  • Assigned on 10/18:
    Based on the classroom discussion, calculate the atomic radius of hydrogen. If you have problems with that, feel free to email me at
  • Assigned on 11/8: Homework: screenshot of classwork explanation  |  

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