Double Bond
Revision as of 13:27, 14 January 2019 by NRJC (talk | contribs) (Created page with "==Key Stage 4== ===Meaning=== A '''double bond''' is a chemical bond in which two electrons are shared or transferred from the [[Outer Shell|outer shell]...")
Key Stage 4
Meaning
A double bond is a chemical bond in which two electrons are shared or transferred from the outer shell between two atoms.
About Double Bonds
- In covalent bonds a double bond means two electrons from the outer shell of an atom are shared with another atom.
- In ionic bonds a double bond means one of the elements has gained or lost two electrons from/to one other element.
Examples
In this structural diagram a double bond is shown between two Sulphur atoms. | In this dot and cross diagram the two Oxygen atoms in an Oxygen molecule are shown to each share two electrons in a double bond. | In this ball and stick model of Carbon Dioxide the Carbon is shown to share two electron (shown by the two sticks) with each Oxygen atom forming two double bonds. |