Per NCERT §3.3, Henry Moseley's 1913 work was based on plotting which quantity vs atomic number Z to obtain a STRAIGHT LINE?
AMelting point
B√ν of characteristic X-rays emitted by the element
CDensity
DAtomic mass
Answer & Solution
Correct answer: B. √ν of characteristic X-rays emitted by the element
Per NCERT §3.3, Moseley plotted √(frequency of X-rays) vs Z → linear. Vs atomic mass it wasn't linear. Established Z as fundamental.
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