Energy required to remove electron from an atom______________?
Correct answer: A. Ionization potential
- A. Ionization potential
- B. Electronegativity
- C. Electron affinity
- D. Activation energy
Explanation
Ionization potential, or ionization energy, is the energy required to remove an electron from an isolated gaseous atom. Students may choose electron affinity because both involve electron-energy changes, but electron affinity concerns adding an electron, not removing one.
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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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