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Website
Environmental Chemistry

Periodic Table of Elements: Gallium

For Students 9th - 10th
A very detailed look at the element Gallium, a member of the Boron Group.
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Website
Environmental Chemistry

Periodic Table of Elements: Indium

For Students 9th - 10th
A very detailed look at the element Indium, a member of the Boron Group.
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Website
Environmental Chemistry

Periodic Table of Elements: Thallium

For Students 9th - 10th
A very detailed look at the element Thallium, a member of the Boron Group.
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Handout
Other

University of Texas at Dallas: Attractions in Compounds

For Students 9th - 10th
Explanation of attractive forces and energy changes involved in bonding.