The plot of square root of frequency of X-ray emitted against atomic number led to the suggestion of which law/rule? (MHT CET 2017)

Moseley gave a modern periodic law. He showed that atomic number is more fundamental property of an element than its atomic mass. He found that, “the square root of the frequency of a line (of X-ray spectrum) is related to the atomic number Z of the target material as” a Z b Where, a = proportionality constant Z = atomic number b = another constant (It has the same value for all the lines of X-ray spectrum) A metalloid is a chemical element that has properties of both metals and non-metals. The term semi-metal is sometimes used. The six commonly recognised metalloids are silicon, germ