Chemistry - Chemical Bonds

What are the three types of bonding?
Covalent, Ionic and Metallic
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When does covalent bonding occur and what are the particles like?
Between non-metals and in most non-metallic elements. Atoms that share pairs of electrons.
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When does ionic bonding occur and what are the particles like?
Between a metal and non-metals. Oppositely charged ions.
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When does metallic bonding occur and what are the particles like?
Between metals and alloys. Atoms that share delocalised electrons.
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Describe the process of ionic bonding.
When metals and non-metals transfer electrons, there atoms become charged (ions). The positively charged metal ions and negatively charged non-metal ions attract and bond by electrostatic attraction.
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Describe the process of covalent bonding.
Non-metals share their electrons.
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Describe the process of metallic bonding
The metals form positively charged ions which are attracted to the negatively charge delocalised electrons.
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Give the properties of ionic bonds.
often crystals. High boiling points. Solid at room temperature and can conduct electricity when melted or in a solution.
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Give the properties of covalent bonds.
Molecules. Gas or liquid at room temperature. Low boiling point. Does not conduct electricity.
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Give the properties of metallic bonds.
In lumps or sheets of metal. Good conductors of electricity. High melting point. Solid at room temperature (except for mercury)
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Why can't covalent bonds conduct electricity?
They have no free electrons or ions
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Other cards in this set

Card 2

Front

When does covalent bonding occur and what are the particles like?

Back

Between non-metals and in most non-metallic elements. Atoms that share pairs of electrons.

Card 3

Front

When does ionic bonding occur and what are the particles like?

Back

Preview of the front of card 3

Card 4

Front

When does metallic bonding occur and what are the particles like?

Back

Preview of the front of card 4

Card 5

Front

Describe the process of ionic bonding.

Back

Preview of the front of card 5
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