How are atomic spectra used?
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"Which following pairs of atoms, have a lower electron affinity? a) Ca,K b) I,F c) Li, Ra. I seriously don't know anything about electron affinity all ik that it can buy another element"
1 Answer
I hope you mean Atomic Absorption or Atomic Emission spectra: if so, they are used to identify and quantify the elements present in a sample.
The spectra consist of a series of lines at different wavelengths, each corresponding to an energy gap between energy levels in the atom, so they are a unique 'fingerprint' that can identify an element.
Common uses include measuring the different metals present in alloys and the amounts, measuring levels of sodium or potassium ions in blood, etc.
