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27 Cards in this Set
- Front
- Back
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Which electrons are most important
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valence electrons
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how do you quickly determine the number of valence electrons
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the group number
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Octet rule
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atoms seek to achieve the configuration of noble gases (8 electrons)
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how can you achieve the octet rule
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gain or loose electrons
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Cations
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Atoms that loose electrons
(+) charge oxidation |
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Which type of elements would be willing to lose and electron
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those with only a few valence electrons
metals group 1 and 2 |
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how do you know the number of electrons an atom is willing to gain or loose
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oxidation number
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Anions
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atoms the gain electrons
(-) charge reduction |
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What happens to the atomic radium if electrons are gained/lost
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increased/decreased
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Are Cations metals or non metals
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Metals
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Are Anions metals or non metals
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non metals
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Ionic Bonding
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a transfer of electrons from one atom to another
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What bonds or holds the compound together?
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electrostatic forces
(+) and (-) charges |
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Properties of Ionic Compounds
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-crystalline solids at room temp
-arranged in 3D patterns -large attractive forces -very stable -high melting points -conduct electricity when dissolved in water |
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Bonding in Metals
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closely packed cations
not neutral atoms valence e- can move |
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What type of ionization energy do metals have?
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low - tend to loose electrons
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Metallic Bonding
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free floating valence electrons are attracted to protons
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Crystalline structure
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metal atoms are arranged in very compact and orderly patterns
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Alloys
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Mixtures that contain a metal and one or more 'other' elements
ex: Sterling silver - Silver and copper Bronze - Copper and tin Steel - iron, carbon, chrome, nickel Titanium - aluminum and vanadium |
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Monatomic Ion
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a single atom with a (+) or (-) charge
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How can you determine the charges an atom can obtain
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oxidation state
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Binary Ionic Compounds
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made of 2 elements, held together by iconic bonds, electrically neutral, formula - cation 1st anion 2nd
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Polyatomic Ions
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Ions that are made up of more than 1 atom, behave as a single unit, carry a charge, table e
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Naming univalent cations
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groups 1 and 2 write the name of the element followed by the word "ion"
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Naming Univalent anions
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group 15,16,17
the root name with an -ide and add "ion" |
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Polyvalent Ions
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Table e
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Stock system
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transition metals with more than one oxidation state, place a roman numerals with the sleceted oxidation state after
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