Compounds of nitrogen and phosphorus are mostly________________?
Correct answer: B. covalent
- A. ionic
- B. covalent
- C. polar
- D. all varieties are possible
Explanation
Nitrogen and phosphorus are non-metals, so they mainly form covalent compounds by sharing electrons. Their compounds may be polar or non-polar depending on the atoms and molecular shape, but the fundamental bonding type is generally covalent. The likely trap is polar, because many N and P compounds have polar bonds, but polarity is not the same as the overall bonding classification.
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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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