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jije1112
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In an experiment one observes the characteristic Ka X-rays of two elements at energies of 6.930 and 7.478 eV. The higher energy line is due to Ni. What element is responsible for the lower energy line?
I have to use formula to find itmfb said:Is this homework?
Simply typing the energy into google gave a result within 10 seconds, faster than typing the question here.
Characteristic Ka X-rays are a type of X-ray radiation that are emitted when an electron transitions from a higher energy level to a lower energy level in an atom's K-shell. These X-rays have a specific energy and wavelength, making them useful for identifying elements present in a sample.
Characteristic Ka X-rays are produced when an electron from an outer shell fills a vacancy in the K-shell of an atom. This causes the electron to lose energy, which is emitted in the form of an X-ray. The energy and wavelength of the X-ray depend on the element and the energy difference between the two shells.
Characteristic Ka X-rays are used in X-ray fluorescence (XRF) analysis, a common method in analytical chemistry for identifying and quantifying elements in a sample. XRF instruments use the energy and wavelength of characteristic X-rays to determine the elements present in a sample.
No, characteristic Ka X-rays can only be produced by elements with at least two electrons in their K-shell. This includes elements with atomic numbers between 4 (beryllium) and 83 (bismuth). Elements with atomic numbers below 4 do not have a K-shell, and elements with atomic numbers above 83 have a filled K-shell, so no characteristic X-rays are emitted.
Characteristic Ka X-rays and Kb X-rays are both produced by electron transitions in the K-shell of an atom, but they differ in their energy and wavelength. Ka X-rays have a higher energy and shorter wavelength than Kb X-rays, and are emitted when the electron transitions from the M-shell to the K-shell. Kb X-rays are emitted when the electron transitions from the L-shell to the K-shell.