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20 Cards in this Set
- Front
- Back
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An Ion is a _ _ _ _ _ _ _ particle
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charged
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What are Isotopes?
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Atoms of the same element w/ different # of neutrons. (Ex. H-1)
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what are noble gases?
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gases in group 18, dont chemically combine iwth other elements. other elements try to be like noble gases.
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nonmetals _ _ _ _ ions.
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gain..... nonagain
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metals _ _ _ _ ions
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metalose
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what group of metals are transition metals
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metals group 3 - 12
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what group of metals are alkaline metals?
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group #1
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what are valence electrons
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outer electrons involved in transfers
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what is a period?
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horizontal row of elements.. hint ( theres a period at the end of ever sentence)
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to find neutrons .. subtract ? from ?
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atomic # from Atomis Mass
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Mass number = ? + ?
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# of protons + # of neutrons
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Atomic number = ? = ?
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# of protons = # of electrons
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what are electrons?
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they are out side the nuclues
have a negative charge |
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what are Nuetrons?
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Found in Nuclues
Nuetral charge n-nuetral |
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what are protons?
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Found in nucleus
positive charge |
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What are atoms?
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building blocks of matter
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Who invented the periodic table?
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Mendeelev
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How can you characterize each family of metals?
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similar properties
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what are the properties of metals?
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Shinyness
hardness malleability ductility |
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Bohr drawings
- first ring hols how many electrons? - rest of the rings hold how many? |
first ring 2
rest of them 8 |
