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Science Chapter 5
| Term | Definition |
|---|---|
| periodic table | |
| period | |
| group | |
| periodic law | |
| atomic mass unit(amu) | |
| metals | |
| transition metals | |
| nonmetals | |
| metalloids | |
| valence electron | |
| alkali metals | |
| alkaline earth metals | |
| halogens | |
| noble gases |