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HS Chemistry > UNIT THREE > Flashcards

UNIT THREE Flashcards

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1
Q

covalent bond

A

electron pairs shared between atoms, form molecular compounds

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2
Q

iconic bond

A

electron pairs shared unequally between atoms, form ionic compounds

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3
Q

metallic bond

A

results from attraction between metal atoms and surrounding electrons

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4
Q

cation

A

positively charged ion

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5
Q

anion

A

negatively charged ion

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6
Q

nonpolar-covalent bond

A

covalent bond where bonding electrons are shared equally by bonded atoms

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7
Q

polar-covalent bond

A

covalent bond where bonded electrons have unequal attraction for the shared electrons

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8
Q

octet rule

A

chemical compounds form to have 8 electrons in the highest occupied energy level

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9
Q

electron-dot notation

A

shows only valence electrons around atomic symbol

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10
Q

Lewis dot structure

A

uses electron-dot notation to represent compounds

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11
Q

resonance structures

A

multiple structures that can represent the bonding in a single compound

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12
Q

polyatomic ions

A

charged groups of two or more covalent bonded atoms

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13
Q

oxoanion

A

polyatomic ion that contains oxygen

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14
Q

acids

A

release H+ when dissolved in water

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15
Q

VSEPR

A

“valence-shell, electron-pair repulsion”
repulsion between valence electrons causes them to be oriented as far as possible

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16
Q

intermolecular forces

A

forces of attraction between molecules

17
Q

dipole

A

created by equal but opposite charges separated by a short distance

18
Q

dipole-dipole forces

A

forces of attraction between polar molecules

19
Q

percent composition

A

percent by mass of each element in a compound

20
Q

molecular formula

A

exact number and type of atom present in one molecule of a compound

21
Q

empirical formula

A

simplest whole number ratio of elements in a compound

22
Q

AB3

A

trigonal planar

23
Q

AB2E

A

bent/v-shaped

24
Q

AB4

A

tetrahedral

25
Q

AB3E

A

trigonal pyramid

26
Q

AB2E2

A

bent/v-shaped

27
Q

AB5

A

trigonal bipyramidal

28
Q

AB6

A

octahedral

29
Q

AB2

A

linear

HS Chemistry (6 decks)

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