Help! Possible names and Z Numbers?
The first six ionization energy for the elements X Y are shown in the element table below. Identify possible names or Z numbers for the elements X and Y? (Note: the ionization energy is not given!)
Table:
http://img130.imageshack.us/img130/5373/...
Answer:
As you can seen the first 4 ionization energies increases slightly then there is a jump.This means that X and Y have 4 valences >> group IVA
X has higter ionization energies so X is over Y in the group.
I thing X is C and Y is Si
X is a Gr 1 (Alkali) and Y is a Group 3 or Aluminium group metal.
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