Element X is in group 3 and element Y is in group 6 of the periodic Table. Which of the following is the most likely formula of the compound formed when X and Y react together?
Correct answer: C. X2Y3
- A. X3Y2
- B. X3Y6
- C. X2Y3
- D. None of these
Explanation
Element X will have a valency of +3 while Y will have a valency of -2. Thus the most likely formula of the compound is X2Y3.
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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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