Chemical bonding

Chemical bonding is a mutual electrical attraction between the nuclei and valence electrons of different atoms that bind atoms together.

There are three types of chemical bonds: ionic, covalent, metallic

An ionic bond is a chemical bond that results from the electrical attraction between cations and anions.

Characteristics:

1) dissolve in water

2) does not melt

3) conductivity: solid-no, liquid-yes, dissolved-yes

Covalent Bond

A covalent bond results from sharing of electron pairs between two atoms.

Characteristics:

1) dissolves in water

2) low melting point

3) never conducts electricity

4) shares electrons


Metallic Bond

A metallic bond is the electrostatic attraction between the positively charged atomic nuclei of metal atoms and the delocalised electrons in the metal.

Characteristics:

1) shiny

2) not soluble

3) high melting point

4) always conducts electricity

Ionic Bond

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