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15 Cards in this Set
- Front
- Back
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2 types of elements that form ionic bonds |
Metals and non-metals |
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Metals tend to _____ electrons and form positive_____ |
Lose and form cations |
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Non-metals tend to _____ electrons and form negative _____ |
Gain and form anions |
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Overall charge of a ionic compound? |
Neutral cations and anions must cancel each other out |
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Chrystal of salt pattern |
3-dimentional array |
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3 properties of ionic compound |
High melting point, hard solid at 22c, good conducter when dissolved |
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Dissociate |
To split into smaller ions |
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Electrons in ionic compounds are |
Free to move |
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Ionic: what is happening to the electrons |
Transfer of electrons |
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Covalent: what is happening to the electrons |
Sharing electrons |
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Metallic : what is happening to the electrons |
Valence electrons are mobile (sea of electrons) |
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What elements form covalent compounds? |
Metals |
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3 properties of covalent compounds |
Soft solids, low melting point ,non conductive |
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3 properties of metallic compounds |
high melting point, ductile, and shiny |
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Covalents have prefixes |
Tetra=4 hexa=6 di=2 |
