maythe15
maythe15
1 / 0
12th Nov 2017
12th Nov 2017
No Description provided.

Comments

  • maythe15
    maythe15
    20th Nov 2017
    Chemlab you can do both
  • maythe15
    maythe15
    20th Nov 2017
    neutron
  • Chemlab
    Chemlab
    12th Nov 2017
    do you add a neutron or a proton