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| Electronegativity can help predict the types of ______________- |
bonds atoms have |
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porkchoppony Thu, 18 Nov 2010 01:33:34 GMT |
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electronegativity values:
___________ has higher electronegatiity than ____________- |
nonmetals
metals |
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porkchoppony Thu, 18 Nov 2010 01:33:34 GMT |
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| __________ are always smaller than the neutral atoms from which they form |
smaller |
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porkchoppony Thu, 18 Nov 2010 01:32:43 GMT |
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| nonmetaic elements tend to gain electrons and form _______________ ions |
negative |
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porkchoppony Thu, 18 Nov 2010 01:32:43 GMT |
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| metallic elemetns tend to loose electrons and form _______________ions |
positive |
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porkchoppony Thu, 18 Nov 2010 01:32:43 GMT |
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| ionization energy |
energy required to overcome the attraction of protoins in the nucleus and remove elctron from gaseous atom |
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porkchoppony Thu, 18 Nov 2010 01:32:43 GMT |
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| when are ions formed? |
when electrons are transferred between atoms |
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porkchoppony Thu, 18 Nov 2010 01:28:38 GMT |
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| what is an ion |
atom that has -/+ charge |
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porkchoppony Thu, 18 Nov 2010 01:28:38 GMT |
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| what are the two variables that affect atomic size within a group |
1. the charge on the nucleus
2. number of occupied energy levels |
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porkchoppony Thu, 18 Nov 2010 01:28:38 GMT |
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| the radius of an atom has to be measured |
indirectly |
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porkchoppony Thu, 18 Nov 2010 01:28:38 GMT |
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| i'm found in inner transition metals |
nobelium |
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porkchoppony Thu, 18 Nov 2010 01:26:06 GMT |
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| i'm found in transition elements |
vanadium |
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porkchoppony Thu, 18 Nov 2010 01:26:06 GMT |
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| i'm found in the representative elemtns |
gallium |
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porkchoppony Thu, 18 Nov 2010 01:26:06 GMT |
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| i'm found in noble gases |
argon |
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porkchoppony Thu, 18 Nov 2010 01:26:06 GMT |
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| inner transition metals |
s sublevel and nearby F sublevel contain electrons |
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porkchoppony Thu, 18 Nov 2010 01:25:22 GMT |
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| transition metals |
s sublevel and D sublevel contain electrons |
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porkchoppony Thu, 18 Nov 2010 01:25:22 GMT |
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| representative elemtns |
S or P sublevels are PARTIALLY filled |
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porkchoppony Thu, 18 Nov 2010 01:25:22 GMT |
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| noble gases |
S or P sublevels are filled |
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porkchoppony Thu, 18 Nov 2010 01:25:22 GMT |
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| how many electrons occupy the energy level in group 3A |
3 |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| ____________________________ are particles that play the key role in determining the properties of an element |
electrons |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| what else can you find from the periodic table, besides the regular stuff |
1. whether an element is found in nature
2. electrons in each energy level
3. state @ room temp |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| under some conditions, i can behave like a metal or nonmetal |
metaloid |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| which has greater variation....nonmetals or metals |
nonmetals |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| what are the properties of metals: |
good conductor of heat
high luster
solid
ductile
malleable |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| what arranged elements in the current periodic table? |
atomic number |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| mendeleev used his periodic table to predict the properties of unddiscovered elemetns: t/f |
true |
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porkchoppony Thu, 18 Nov 2010 01:23:47 GMT |
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| what did dmitri mendeleev do? |
organized based on atomic mass |
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porkchoppony Thu, 18 Nov 2010 01:16:56 GMT |
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| what did chemists use to sort elements into groups? |
properties of elements |
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porkchoppony Thu, 18 Nov 2010 01:16:56 GMT |
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| what casued the rate of discovery to increase after 1700 |
SCIENTIFIC METHOD |
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porkchoppony Thu, 18 Nov 2010 01:16:56 GMT |
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| how many elements were identified by the year 1700 |
13 |
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porkchoppony Thu, 18 Nov 2010 01:16:56 GMT |
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