Lothar Meyer plotted a graph showing variation of
Correct answer: B. Atomic volume with increase in atomic weight
- A. Atomic volume with increase in atomic number
- B. Atomic volume with increase in atomic weight
- C. Atomic radii with increase in atomic weight
- D. Atomic weight with increase in atomic number.
Explanation
Lothar Meyer was one of the pioneers in recognizing the periodicity of elemental properties. He plotted a graph of atomic volume versus atomic weight, which revealed the periodic trends in the properties of elements. This graph was significant in the development of the periodic table. Option B is correct because it accurately describes this relationship. Option A is incorrect because it suggests a relationship with atomic number, which was not the focus of Meyer's graph. Option C is incorrect as it introduces atomic radii, which was not the property plotted by Meyer. Option D confuses the relationship, as it suggests plotting atomic weight against atomic number, which was not Meyer's approach.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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