Moseley law of periodic table
Chemistry
ScanSolve AI Answer
Answer
Moseley's law relates the frequency of X-rays emitted by an element to its atomic number. It states that the square root of the frequency (√ν) of the characteristic X-rays emitted by an element is directly proportional to the atomic number (Z) of that element.
The formula is:
√ν = a(Z - b)
Where:
- ν is the frequency of the emitted X-ray.
- Z is the atomic number of the element.
- a and b are constants that depend on the specific X-ray emission line (e.g., Kα, Lα). For the Kα line, b is approximately 1.
This law was crucial because it provided experimental evidence for the atomic number being the fundamental property of an element, rather than atomic weight, and it allowed for the correct placement of elements in the periodic table.
Was this helpful?
Still stuck on this one?
Ask a follow-up, and the answer starts from this question.
Got a different question?Ask your own question