Topics of this game:
- each of the following is among the properties of the electron , except that it ..........................
- the electron which is excited to the fourth energy level .....................................
- on comparing the position of the electron in its ground state , with its position in the excited state , it is ...................................
- which of the following supports the concept of quantum in determining the energy of the electron?..................................
- the difference between any two successive energy levels..................................
