BondingBonding

This presentation shows two This presentation shows two types of bonding.types of bonding.

Ionic bondingIonic bonding

Covalent bondingCovalent bonding

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Ionic BondingIonic Bonding

Ionic bonds form between Ionic bonds form between metalsmetals and and non-non-metalsmetals

MetalMetal atoms atoms loselose electrons to form electrons to form positivepositive ionsions

Non-metalNon-metal atoms atoms gaingain electrons to form electrons to form negativenegative ions ions

The oppositely charged ions attract one The oppositely charged ions attract one anotheranother

SodiumSodium and and ChlorineChlorine

11+ 17+

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11+ and 10- = 1+

Na+

17+ and 18- = 1-

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+-

Magnesium Magnesium andand OxygenOxygen

12+ 8+

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12+ and 10- = 2+

Mg2+

8+ and 10- = 2-

O2-

2+ 2-

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MagnesiumMagnesium and and ChlorineChlorine

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17+ and 18- = 1-

Cl-

17+ and 18- = 1-

Cl-

12+ and 10- = 2+

Mg2+

17+ 12+ 17+

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- -2+

Covalent BondingCovalent Bonding

Covalent bonds form between Covalent bonds form between non-metalnon-metal atomsatoms

Covalent bonds involve Covalent bonds involve sharingsharing a paira pair of of electronselectrons

HydrogenHydrogen and and HydrogenHydrogen

HH2

H

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NitrogenNitrogen and and HydrogenHydrogen ( (AmmoniaAmmonia))

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H

H

HN

NH3

HydrogenHydrogen and and OxygenOxygen

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H2O

H H

O

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