K α wavelength emitted by an atom of atomic number Z = 11 is λ . Find the atomic number for an atom that emits K α radiation with wavelength 4 λ .

Question

K α wavelength emitted by an atom of atomic number Z = 11 is λ . Find the atomic number for an atom that emits K α radiation with wavelength 4 λ .,

MARKS App · Accepted Answer

1 λ ∝ z-1 2 ∴ λ 1 λ 2 = z 2 - 1 2 z 1 - 1 2 1 4 = Z 2 - 1 1 1 - 1 2 Solving this, we get, Z 2 = 6