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Chapter 17
Vocab for Physical Science test
| Term | Definition |
|---|---|
| Element | any pure substance that is made of only one kind of atom |
| Monotomic Elements | have 1 atom in natural state |
| Diatomic Elements | have 2 atoms in natural state |
| Dmitri Mendeleev | made the periodic table we use today |
| Johann Dobereiner | arranged the Periodic Table in traids |
| Periodicity | the repetition of certain properties at regular intervals when elements were placed in order of atomic mass |
| John Newlands | Octaves |
| Henry Moseley | atomic numbers |
| Electron affinity | attraction of electron to unbounded atoms |
| Electronegativity | attraction of electrons to bonded atoms |
| Covalent Bonds | nonmetal/nonmetal |
| Ionic Bonds | nonmetal/metal |
| Metallic Bonds | metal/metal |