SINCE Moseley's discovery of the fundamental laws of the X-ray emission ... conclusive characteristic of a Chemical element is given by its X-ray spectrum. In addition, Moseley's laws allow ...

When a gas is very hot, it doesn’t emit all wavelengths of light ... Key fact Line emission spectra are unique to a particular element. Different elements produce different line spectra.

The application of the recently introduced ‘R.U. Powder’ (Raies Ultimes) prepared so as to give under suitable conditions a composite spectrum ... chief lines of all the elements in a sample ...

This causes line emission spectra to be produced ... produces photons with different energy and so the line spectra for different elements will be different. This means that line spectra can ...