GCSE Chemistry - Covalent Bonding #16
Cognito・2 minutes read
Atoms form covalent bonds by sharing electrons, creating dot and cross diagrams to represent this sharing, simplifying drawing complex molecules. Various substances can be formed through covalent bonds, including simple molecular substances like water and larger structures like polymers.
Insights
- Atoms form covalent bonds through electron sharing, common in non-metal elements like chlorine. This sharing creates dot and cross diagrams, unlike ionic bonds where electrons are transferred.
- Covalent molecules are represented by displayed formulas using chemical symbols and lines for bonds, simplifying complex molecules like glucose. However, this method does not show the 3D shape of the molecule, which is crucial for understanding its properties and interactions.
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Recent questions
How do atoms form covalent bonds?
By sharing electrons to achieve a full outer shell.
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Summary
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"Covalent Bonds: Sharing Electrons for Molecules"
- Atoms can form covalent bonds by sharing electrons, unlike ionic bonds where electrons are transferred. In covalent bonds, non-metal elements like chlorine share electrons to achieve a full outer shell, creating dot and cross diagrams to represent this sharing.
- Covalent molecules can be represented using displayed formulas, where chemical symbols are used with lines to show covalent bonds. This method simplifies drawing complex molecules like glucose, although it doesn't depict the 3D shape of the molecule.
- Covalent bonding in substances like ammonia (NH3) involves sharing electrons to complete outer shells. Different types of substances, including simple molecular substances like water (H2O) and methane (CH4), as well as larger structures like polymers and giant covalent structures, can be formed through covalent bonds.
