Question

modern periodic table is based on the atomic number of elements,what was the experiment which proved the significance of atomic number from the following
1)mullikan's oil drop experiment
2)moseley's work on x-ray spectra
3)Bragg's work on X-ray diffraction
4)discovery of x-rays by rongten

Answer 1

Answer:

I think may be the answer is( 2) Moseley's work on x ray spactra

Answer 2

Explanation:

a force of 5N act on a body.what is the acceleration produced in m/s^2,if the weight of the body The spectrum of light emitted by a glowing solid is

A) Continuous spectrum B) Line spectrum C) Band spectrum D) Absorption gspectrum