Electronegativity
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Electronegativity. Sometimes the difference in electronegativity between two atoms is so vast (greater than 1.6) that the bonding electrons are fully transferred to the most electronegative atom . Electronegativity.

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Electronegativity

Sometimes the difference in electronegativity between two atoms is so vast (greater than 1.6) that the bonding electrons are fully transferred to the most electronegative atom.


Electronegativity

Sometimes the difference in electronegativity between two atoms is so vast (greater than 1.6) that the bonding electrons are fully transferred to the most electronegative atom.

E.g.

Na

Cl


Electronegativity

Lost one (1) electron: Becomes positively charged by one; therefore +1.

Gained one (1) electron: Becomes negatively charged by one; therefore -1.

Na

Cl


Ionic bonds

The oppositely charged ions attract to each other. The electrostatic attractive force between these ions is called an ionic bond.

Na

Cl


Ionic bonds

The oppositely charged ions attract to each other. The electrostatic attractive force between these ions is called an ionic bond.

Bonding

Ionic

Covalent

Lewis structures

Polarity

Electronegativity


Ionic bonds

For ionic compounds the positive and negative ions are arranged in a lattice. For example, table salt (NaCl).

Na

Cl

Na

Cl

Na

Cl

Na

Na

Cl

Na

Cl


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