Lewis Structure Flashcards

1
Q

symbols of lewis structures

A

dots

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2
Q

symbol used to indicate a shared pair of electrons

A

dash or line

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3
Q

electrons that are not used in bonding

A

lone pairs

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4
Q

single shared pair of electrons

A

single bond

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5
Q

the main group of atoms has to form enough bonds to obtain 8 valence electrons

A

octet rule

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6
Q

formed when two pairs of electrons are shared between a pair of atoms

A

double bond

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7
Q

formed when three electron pairs are shared by a pair of atoms

A

triple bond

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8
Q

first rule of the lewis structure

A

determine the total number of valence electrons

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9
Q

second rule of the lewis structure

A

draw a skeletal structure of the molecule, arranging the atoms around a cetnral atom

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10
Q

third rule of the lewis structure

A

distribute the remaining electrons as lone pairs on the terminal atoms (EXCEPT HYDROGEN)

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11
Q

fourth rule of the lewis structure

A

distribute the remaining electrons as lone pairs on the terminal atoms

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12
Q

elements that only need 2 atoms to achieve balance

A

hydrogen and helium

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13
Q

fifth rule of the lewis electron

A
  1. Rearrange the electrons of the outer atoms to make multiple bonds with the central atom in order to obtain octets wherever possible.
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14
Q

can hydrogen be a central atom?

A

no.

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