3 Questions
Explain the difference between covalent and dative covalent bonds in the context of the IAL Edexcel specifications.
Covalent bonds involve the sharing of electron pairs between atoms, while dative covalent bonds involve the sharing of an electron pair from one atom to another. In the IAL Edexcel specifications, covalent bonds are typically discussed in the context of molecular compounds, while dative covalent bonds are often encountered in coordination compounds and complex ions.
How do covalent and dative covalent bonds differ in terms of electron sharing and formation?
Covalent bonds are formed by the sharing of electron pairs between atoms, whereas dative covalent bonds are formed when one atom donates both electrons in a shared pair to form a bond with another atom. This results in the formation of a coordinate covalent bond.
Provide an example of a compound or molecule that contains a dative covalent bond as per the IAL Edexcel specifications.
One example is the ammonium ion (NH4+), where the nitrogen atom donates a lone pair of electrons to form a dative covalent bond with a hydrogen ion (H+). This forms a dative covalent bond between the nitrogen and the hydrogen ion.
Test your understanding of covalent and dative covalent bonds according to the IAL Edexcel specifications with this quiz. Learn about the differences in electron sharing and formation between these two types of bonds, and challenge yourself with an example of a compound or molecule that contains a dative covalent bond.
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