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Lessons 6-13
Metals, Non-Metals and Bonding
| Term | Definition |
|---|---|
| luster | shine |
| ductile | able to be drawn into wire |
| malleable | able to be hammered or bent into a shape |
| dense | heavy for its size |
| reactive | easily combines chemically with other elements |
| metalloids | have properties and characteristics of both metals and non-metals |
| ions | atoms with either a positive or negative electrical charge |
| cation | atoms that lose electrons and have a positive charge |
| anion | atoms that gain electrons and have a negative charge |
| valence shell | the outermost shell of an atom |
| valence electron | the electrons found in the outermost shell of an atom |
| ionic bond | type of bond where atoms give electrons to other atoms and there is an attraction between oppositely charged ions |
| covalent bond | type of bond where electrons are shared between atoms |
| metals | found to the left of the staircase on the periodic table, form ionic bonds with non-metals, lustrous, ductile, malleable, conductors |
| non-metals | found to the right of the staircase on the periodic table, dull, brittle, do not conduct electricity |
| octet rule | atoms want to have 8 electrons in their outer shell to be stable |
| oxidation number | the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom |
Created by:
ronikaye
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