Glossary

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periodicity

Subject: 

  • Physical Sciences

variation in a repetitive way as you move through the periodic table vertically or horizontally.

Related Terms: 

periodic table

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hydrohalogenation
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contains an unpaired electron on a carbon atom bonded to only one other carbon atom.

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the process in radioactive decay where daughter nuclei continue to decay until non-radioactive...

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no atoms are gained or lost during a chemical reactions.

tetrahedral shape
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ratio of atoms is 1 : 4 with a bond angle of 109,50 example CH4