Ionic to covalent compounds

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Presentation transcript:

Ionic to covalent compounds What is the difference?

Ionic Bonds These bonds form only between metals and non-metals.

Ionic Bonds Exchange electrons. The metal ion “cation” loses electrons and becomes positively charged. The non-metal “anion” gains electrons and becomes negatively charged. This Photo by Unknown Author is licensed under CC BY-NC-ND

Properties of Ionic Compounds Ionic compounds have high melting and boiling points. Ionic compounds conduct electricity when dissolved in water or molten. Ionic compounds rarely burn. Ionic compounds are hard and brittle. Ionic compounds form crystals.

Covalent Bonds These bonds form only between non-metals.

Covalent Bonds Share Electrons to fill their valence shells. Do not have charges.

Valency The number of electrons in the outer shell of an atom which are able to be used to form bonds with other atoms.

Covalent Bond Forming

Examples O2 NH3

O2

NH3

Covalent Bonds These bonds form only between non-metals. Share electrons to fill valence shell. Only Share unpaired electrons.

Properties of Covalent Bonds Covalent compounds have low melting and boiling points. Covalent compounds never conduct electricity. Covalent compounds burn more frequently. Covalent compounds have a wide variety of textures. Covalent compounds have many different appearances.