[smoran]

this is a problem i have been trying to do for a long time, but just dont understand, its not for extra credit or a grade or anything, i am just curious and it is really bothering me...

From the information below, identify chemical X

A) The wavelength of the radiowaves sent by an FM station broadcasting at 97.1MHZ is 3.00 * 10^7 times greater than the wavelength corresbonding to the energy difference between a particular excited state of the hydrogen atom and the ground state.

B) Let V represent the principle quantum number for the valence shell of element X. If an electron in the hydrogen atom falls from shell V to the inner shell corrosponding to the excited state mentioned above in part A, the wavelength of light emmited is the same as the wavelength of an electron moving at a speed of 570 m/s.

C) This element has 1 unpaired electon.

D) Let 'A' equal the charge of the stable ion that would form when the undiscovered element 120 forms ionic compounds. The value of 'A' also represents the angular momentum quantum number for the subshell containing the unpaired electron(s) for element X.

Please try to show you work if it is possible so i know how to work it from beganning to end, thanks a lot

[gregpawin]

Perhaps you should tell us how far you've gotten with these problems...

and please don't post your questions twice... and make up a better title than chemistry help please in capitals

[Donaldson Tan]

C) This element has 1 unpaired electon.

forum policy requires you to show that u've attempted. we are ethically against that we might be doing your homework, instead of teaching you.

this element has 1 unpaired electron. it could be Group I, III or VII, or a transition element.