Names:

(The answers to the following questions should be based upon the energy levels of the hydrogen atom and the aufbau principle)

1)   Give the full electron configuration for the ground state of tungsten (W).
 
 

     Draw a line in the above configuration indicating the end of the core structure and the
     beginning of the valence electron configuration.

     Give the electron configuration for the ground state of tungsten using the core
     structure designation.
 
 
 

2)   Give the full electron configuration for the ground state of silicon (Si).

     Draw a line in the above configuration indicating the end of the core structure and the
     beginning of the valence electron configuration.

     Give the electron configuration for the ground state of silicon using the core
     structure designation.