electron excitation and valency

[silverwind]

i've studied that if given energy,electrons can jump orbits.so if i give energy to an atom with config. 2,8,8 ,will it become 2,7,9?if yes will its valency change?

 

thanks.

 

 

[swansont]

The excitation can be to even higher states than the p–d transition you describe, depending on the energy added. But the excitation is relatively brief, and the atom will de-excite back to the ground state — the odds of undergoing a reaction in the excited state are small, and that's a much more advanced concept (photoassisted reactions)