The following sketch shows the melting point of eight elements with consecutive atomic numbers. Which element is Silicon?
Correct answer: C. Option C
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Silicon has a giant covalent structure and a lot of heat is required to break the strong covalent bonds hence it has the highest melting point in the graph above.
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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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