Who conducted X-ray spectroscopic study of a large number of elements and showed that the frequency of X-rays emitted by an element is related to the atomic number, Z, rather than the atomic mass?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Henry Moseley.
- Henry Moseley conducted X-ray spectroscopic studies of a large number of elements and showed that the frequency of X-rays emitted by an element is related to atomic number, Z, rather than atomic mass.
- He explained that the atomic number is the most basic property of elements compared to atomic mass.
- Henry Moseley's work between 1887 and 1915 helped to establish a one-to-one correspondence connection between the atomic number Z and that of each element.
- Al, Ti, Cu, Zr, Ag, and Te are six well-known substances whose X-ray spectra have been measured.