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Which of the following arrangements indicates the correct decreasing order of ionization energy of period...

Chemistry
WAEC 2017

Which of the following arrangements indicates the correct decreasing order of ionization energy of period 3 elements?

  • A. Na, Al, P, Cl
  • B. Cl, P, Al, Na
  • C. Na, P, Cl, Al
  • D. Al, Na, P, Cl
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Correct Answer: Option B
Explanation

As you move across a period, first ionization energy increases.

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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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NECO June/July 2024 - Get offline past questions & answers - Download objective & theory, all in one app 48789