Term
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Definition
the stregnth possesed by an atom to take an electron away.
the more protons it has, the more electrons it wants. |
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Term
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Definition
| metals have lower values, non metals have higher values. |
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Term
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Definition
| the energy it takes to remove an electron. |
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Term
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Definition
| metals have lower ionizatin energies because they tend to lose electrons more easily. |
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Term
| how many electrons are needed for an element to be stable? |
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Definition
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Term
| what are the two types of chemical bonds? |
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Definition
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Term
lewis dot diagram for a monoatomic molecule |
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Definition
square brackets, and electons lost in superscript.
ex: [Ca]2+ |
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Term
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Definition
one or more electrons are transferred.
METALS
-gives up electrons
-becomes positive
-radius decreases
NONMETALS
-gain electrons
-becomes negative
-radius increases
[ Na ]+ [ *Cl*]- |
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Term
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Definition
- based on structure
- high melting/boiling points
- high heats of fusion
- high heats of vaporization
- low vapor pressures
- conduct electric currents in liquid state.
- crystals |
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Term
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Definition
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Term
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Definition
ion with a negative charge |
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Term
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Definition
-sharing electrons
-nonmetals react with nonmetals
* like elements can't stand next to eachother in lewis dot diagrams.* |
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Term
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Definition
- more than one atom
- covalently bonded |
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Term
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Definition
| charged particle that has ganied or lost an electron |
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Term
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Definition
discrete particles formed by covalently bonded atoms,
-exist in all phases. |
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Term
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Definition
-few valence elctrons
-low ionization energies.
-niether ionic nor covalent bonding is possible.
-metallic bonding occurs.
-crystalline lattice [gemetric arrangment]
-"sea of electrons" |
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Term
| atoms of non metals react with atoms of metals by |
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Definition
gaining electrons to form ionic compounds |
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Term
| what bonding is present in network solids? |
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Definition
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Term
| how can you tell that a compound contains both ionic and covalent bonds? |
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Definition
| there'll be an element to the 3rd. |
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Term
| what type of bond is present in copper wire? |
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Definition
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Term
bond examples
ionic
covalent
nonpolar
metallic
network |
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Definition
ionic- NaCl
covalent- H2O, NH3
nonpolar- I2, CO2
metallic- Cu, Mg ribbon
network- diamond, SiO2 |
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Term
role of valence electorns in
an ionic bond-
a covalent bond-
a metallic bond- |
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Definition
ionic- electrons are transfered
covalent- electrons are shared
metalli- sea of electrons |
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Term
| covalent lewis dot structures vs. ionic dot structures |
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Definition
covalent = circles
ionic = brackets + arrows |
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