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Question & Answer
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Atomic radius increases down a group, while noble gases have the largest atomic radius in their period.
Atomic radius decreases across a period, and noble gases have the smallest atomic radius compared to other elements in their period.
Atomic radius increases across a period, and noble gases have the largest atomic radius in the group.
Noble gases always have a larger atomic radius than the alkali metals in the same period.
Understanding the Answer
Let's break down why this is correct
Across a period, atomic radius decreases because more protons pull electrons closer. Other options are incorrect because The radius does increase down a group, but noble gases are not the largest; The radius does not increase across a period; it shrinks.
Key Concepts
Periodic Table Structure
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Deep Dive: Periodic Table Structure
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Definition
The structure of the Periodic Table organizes elements based on their properties in a tabular form. It includes periods, groups, noble gases, and the arrangement of elements according to their atomic numbers. Understanding the structure helps in predicting the behavior and characteristics of elements.
Topic Definition
The structure of the Periodic Table organizes elements based on their properties in a tabular form. It includes periods, groups, noble gases, and the arrangement of elements according to their atomic numbers. Understanding the structure helps in predicting the behavior and characteristics of elements.
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