Home » The size (diameter) of the five elements are in the order RThe size (diameter) of the five elements are in the order R The size (diameter) of the five elements are in the order R A. R B. T C. W D. X E. Y Correct Answer: Option A Explanation Related Posts What is the Preparation of Phthalimide from Phthalic Acid? To obtain pure carbon(ii)oxide from its mixture with carbon(iv)oxide, the mixture should be? Aluminum hydroxide is used in the dyeing industry as a? The most important element on the earth’s crust is? An electron can be added to a halogen atom to form a halide ion with? Proteins in acid solution undergo?