Archive for the ‘Chemistry’ Category

List all possible elements that could give rise to this spectrum?

Monday, August 10th, 2009
give rise
Jonathan Y asked:

An x-ray spectrum of an element exhibits emission of electrons at 12 distinct kinetic energies. The spectrum is measured with an excitation photon energy sufficient to ionize the most strongly bound electron. List all possible elements that could give rise to this spectrum.

I don’t know where to start?

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in carbon NMR - will a ch3 give rise to a different peak from ch2?

Wednesday, December 3rd, 2008
give rise
mrs m asked:


or will they give rise to one ch peak?

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