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ch 17-18 vocab
| 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 | 2 atoms in the natural state |
| periodicity | the repetition of certain properties at regular intervals when elements were placed in order of atomic mass |
| metals | they belong to families with relatively few valence electrons |
| electron affinity | deals with the strength of attraction of electrons to unbonded atoms |
| electronegativity | deals with an atoms ability to attract and hold electrons when bonded to other atoms |
| covalent bonds | non-metal/non-metal-sharing electrons |
| ionic bonds | metal/non-metal-giving away and taking electrons |
| metallic bonds | metal/metal-everyone shares the electrons |
| non-metals | hold their electrons tightly so their properties are very different from metals |