Problem: The first ionization energy and the electron affinity of Ar are both positive values.What is the significance of the positive value in each case?

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We are asked to determine the significance of having positive ionization energy and a positive electron affinity for Ar.

Let us define ionization energy and electron affinity.

  • Ionization energy
    • the amount of energy required to remove an electron from the gaseous form of that atom or ion
    • always positive for a neutral atom
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Problem Details

The first ionization energy and the electron affinity of Ar are both positive values.

What is the significance of the positive value in each case?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Periodic Trends: Electron Affinity concept. You can view video lessons to learn Periodic Trends: Electron Affinity. Or if you need more Periodic Trends: Electron Affinity practice, you can also practice Periodic Trends: Electron Affinity practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Gillespie's class at FIU.