MCAT Chemical and Physical Foundations of Biological Systems Flashcards: 4e Periodic Trends Atomic Properties

Study 4e Periodic Trends Atomic Properties in MCAT Chemical and Physical Foundations of Biological Systems with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is the periodic trend for electron affinity (more negative) when moving left to right across a period?

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ANSWER

Electron affinity becomes more negative across a period. Smaller radius and higher ZeffZ_{\mathrm{eff}} stabilize added electron more effectively.

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MCAT Chemical and Physical Foundations of Biological Systems: Foundational Concepts

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This deck focuses on 4e Periodic Trends Atomic Properties, giving you a quick way to review the definitions, rules, and examples that matter most for MCAT Chemical and Physical Foundations of Biological Systems.

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Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
In a study of ion channel selectivity, researchers compare dehydrated ionic radii as a factor in permeation through a narrow pore. They consider the common biological cations Na+, Mg2+, K+, and Ca2+. Based on periodic trends and effective nuclear charge, which ion is expected to have the smallest ionic radius? Assume typical oxidation states shown.
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