Hastings High School

Hastings-on-Hudson Union Free School District

Diatomic Species by Molecular Orbital Theory

Brief introduction into Molecular Orbital (MO) Theory. This site describes (with diagrams) the formation of bonding and antibonding MOs and the prediction of paramagnetism and bond order.

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Periodic Table of the Elements: WebElements

A Periodic Table with links to element properties, similar to Dayah's table, but not as visually appealing. It's not bad, though.

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Periodic Table of the Elements: Michael Dayah's Periodic Table

Provides huge amounts of reference material, properties of elements, including electron configurations, known isotopes, etc. Well designed and actually fun to browse through. I know, it's hard to believe. But it is so.

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Periodic Table of the Elements: Spectra

A Periodic Table with clickable links to elements' line absorption and emission spectra. It includes wavelengths in Ångstroms.

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Periodic Table of the Elements: The ChemiCool Periodic Table

Periodic Table with links to element properties. Reasonably well designed.

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Konig, Florian