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Questions and Answers
How does atomic size affect electron affinity?
What is the effect of shielding on electron affinity?
Why does electron affinity decrease with increasing atomic size?
In which atoms is the shielding effect more pronounced?
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What happens to the effective nuclear charge as the shielding effect increases?
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Study Notes
Electron Affinity and Atomic Size
- Electron affinity increases as atomic size decreases:
- Smaller atoms have a higher electron affinity due to their stronger nuclear attraction.
- As atomic size increases, the distance between the nucleus and the outermost electrons increases, reducing the nuclear attraction and resulting in a lower electron affinity.
Electron Affinity and Shielding Effect
- Shielding effect decreases electron affinity:
- In atoms with multiple electron shells, the inner electrons shield the outer electrons from the nuclear attraction.
- This reduces the effective nuclear charge, resulting in a lower electron affinity.
- As the shielding effect increases, the electron affinity decreases.
- The shielding effect is more pronounced in atoms with larger atomic sizes, leading to a lower electron affinity.
Electron Affinity and Atomic Size
- Smaller atomic size results in higher electron affinity due to stronger nuclear attraction.
- Larger atomic size leads to lower electron affinity as the distance between nucleus and outermost electrons increases.
- Nuclear attraction decreases with increasing atomic size, resulting in lower electron affinity.
Electron Affinity and Shielding Effect
- Shielding effect reduces electron affinity by decreasing the effective nuclear charge.
- Inner electrons in multi-shell atoms shield outer electrons from nuclear attraction.
- Increased shielding effect results in lower electron affinity.
- Shielding effect is more pronounced in larger atoms, leading to lower electron affinity.
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Description
Understand the relationship between electron affinity and atomic size, and how the shielding effect affects electron affinity in atoms with multiple electron shells.
