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17 Cards in this Set
- Front
- Back
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How does atom become cation?
Does name change? |
atom loses electron, name does not change
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How does atom become anion?
Does name change? |
atom gain electron, name changes to -ide
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How do you know the charge of ion?
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group number
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Characteristics of ionic compound?
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high melting point
soild at room temp hard and brittle |
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Characteristics of molecular compound?
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low melting point
gas and liquid at room temp. |
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What is a formula unit?
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represenative particles, atoms, and molecules
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Whats molecular formula?
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shows you kind and number of atoms present in molecule.
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Whats law of definite proportions?
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elements always combined in the same proportions by mass.
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Whats law of multiple proportions?
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two elements form one compound, mass number combine to form small whole number ratio.
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What does ending in -ate or -ite tell you?
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polyatomic ions
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What do we use to indicate charge on transition metal?
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number in parenthesis (cation)
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Binary compounds end in?
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-ide
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Whats used to name molecular compounds?
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prefixes
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Name three represenative particles
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atoms, molecular, and formula units
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What is GAM, GMM, and GFM
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gram atomis mass, gram formula mass, and gram formula mass
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What's STP?
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standard temp. and pressure
30C 1 ATP |
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What's empirical formula? How do you recognize it?
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formula with lowest whole number ratio of elements in compound
Lowest term |
