Answers 26-27 CFISD TX-Chemistry A CR Periodic TrendsQuestion 8

8

QuizMultiple Choice

Periodic Trends

Question 8 • *26-27 CFISD TX-Chemistry A CR

Which best describes ionization energy?

Answer

A

energy needed to add an electron to a neutral atom in the gas phase

B

energy needed to add an electron to a neutral atom in the liquid phase

C

energy needed to remove an electron from an atom or ion in the gas phase

D

energy needed to remove an electron from an atom or ion in the liquid phase

Explanation

Ionization energy is the energy required to remove an electron from an atom or ion in the gas phase. Adding an electron describes electron affinity, while the gas-phase condition distinguishes the definition from choices involving liquid-phase particles.

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