Hydrogen resembles with carbon because of having________________?
Correct answer: C. Remarkable reducing properties
- A. Same number of electrons in the valence shell
- B. Similar physical state
- C. Remarkable reducing properties
- D. Homovalent (show same valency)
Explanation
Hydrogen and carbon can both act as reducing agents because they combine with oxygen and remove oxygen from some compounds, so the stated resemblance is based on their reducing behaviour. Students may choose a by counting only hydrogen's one valence electron, but carbon has four valence electrons, so they do not have the same valence-shell electron count.
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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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