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Covalent Compounds
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Covalent compounds Covalent compounds are formed when atoms/elements share electrons. It only occurs between two or more non-metals. Example: 0₂ 00 This way, the molecules will have no overall charge as no electrons are lost or gained. O A small molecule contains only a few atoms. molecules: a group of two or more. joined together by covalent bonds. Molecules can also be represented by this model: 00 N stick and ball model An example of a triple bond. Properties Covalent compounds have strong covalent bonds. However, weak intermolecular forces hold together the molecules. This means that when covalent compounds are neated up, these weak forces are overcome. Little energy is required to overcome them, so Covalent compounds have: Some molecules may have double or Electricity: triple bonds. For example: N₂ Oxygen has a double bond. Some groups like the halogens all exist as molecules. L "low boiling points low melting points. meaning that covalent compounds are usually liquid or gas at room temperature. Substance: Melting Boiling State (room temp) Oxygen -218 °C -183% Gas Water 0°C 100°C Liquid The intermolecular forces between the H₂O molecules are stronger than oxygen's. This is because generally, the bigger the molecule the stronger the intermolecular forces, so the higher the melting and boiling points. Substances can conduct electricity if: "it contains charged particles L the particles are free to move from place to place. Small molecules have no overall charge so they cann of conduct electricity. at all
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Introduction to covalent compounds Notes are improving too :)
Introduction to covalent compounds Notes are improving too :)
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Covalent compounds Covalent compounds are formed when atoms/elements share electrons. It only occurs between two or more non-metals. Example: 0₂ 00 This way, the molecules will have no overall charge as no electrons are lost or gained. O A small molecule contains only a few atoms. molecules: a group of two or more. joined together by covalent bonds. Molecules can also be represented by this model: 00 N stick and ball model An example of a triple bond. Properties Covalent compounds have strong covalent bonds. However, weak intermolecular forces hold together the molecules. This means that when covalent compounds are neated up, these weak forces are overcome. Little energy is required to overcome them, so Covalent compounds have: Some molecules may have double or Electricity: triple bonds. For example: N₂ Oxygen has a double bond. Some groups like the halogens all exist as molecules. L "low boiling points low melting points. meaning that covalent compounds are usually liquid or gas at room temperature. Substance: Melting Boiling State (room temp) Oxygen -218 °C -183% Gas Water 0°C 100°C Liquid The intermolecular forces between the H₂O molecules are stronger than oxygen's. This is because generally, the bigger the molecule the stronger the intermolecular forces, so the higher the melting and boiling points. Substances can conduct electricity if: "it contains charged particles L the particles are free to move from place to place. Small molecules have no overall charge so they cann of conduct electricity. at all
Covalent compounds Covalent compounds are formed when atoms/elements share electrons. It only occurs between two or more non-metals. Example: 0₂ 00 This way, the molecules will have no overall charge as no electrons are lost or gained. O A small molecule contains only a few atoms. molecules: a group of two or more. joined together by covalent bonds. Molecules can also be represented by this model: 00 N stick and ball model An example of a triple bond. Properties Covalent compounds have strong covalent bonds. However, weak intermolecular forces hold together the molecules. This means that when covalent compounds are neated up, these weak forces are overcome. Little energy is required to overcome them, so Covalent compounds have: Some molecules may have double or Electricity: triple bonds. For example: N₂ Oxygen has a double bond. Some groups like the halogens all exist as molecules. L "low boiling points low melting points. meaning that covalent compounds are usually liquid or gas at room temperature. Substance: Melting Boiling State (room temp) Oxygen -218 °C -183% Gas Water 0°C 100°C Liquid The intermolecular forces between the H₂O molecules are stronger than oxygen's. This is because generally, the bigger the molecule the stronger the intermolecular forces, so the higher the melting and boiling points. Substances can conduct electricity if: "it contains charged particles L the particles are free to move from place to place. Small molecules have no overall charge so they cann of conduct electricity. at all
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SuSSan, iOS User