Chemistry
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Boundless Chemistry
Periodic Properties
Chemistry Textbooks Boundless Chemistry Periodic Properties
Chemistry Textbooks Boundless Chemistry
Chemistry Textbooks
Chemistry

Section 3

Periodic Trends

Book Version 33
By Boundless
Boundless Chemistry
Chemistry
by Boundless
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7 concepts
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Variation of Physical Properties Across a Period

The physical properties of elements vary across a period, mostly as a function of bonding.

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Variation of Physical Properties Within a Group

The physical properties (notably, melting and boiling points) of the elements in a given group vary as you move down the table.

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Electron Configurations and Magnetic Properties of Ions

The electron configuration of a given element can be predicted based on its location in the periodic table.

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Atomic Radius

Atomic radii decrease from left to right across a period and increase from top to bottom along a group.

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Ionic Radius

Similarly charged ions tend to decrease in size across a period (row) and increase in size down a group (column).

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Ionization Energy

The ionization energy tends to increase as one moves from left to right across a given period or up a group in the periodic table.

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Electron Affinity

The electron affinity of the elements generally increases across a period and sometimes decreases down a group in the periodic table.

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