General Chemistry 1- Polyatomic Ions |
Latest Update | 2024/2025 | 100% Correct
What are polyatomic ions, and how do they differ from monatomic ions?
Polyatomic ions are ions composed of two or more atoms covalently bonded together,
carrying a net charge. They differ from monatomic ions, whi...
General Chemistry 1- Polyatomic Ions |
Latest Update | 2024/2025 | 100% Correct
What are polyatomic ions, and how do they differ from monatomic ions?
✔✔ Polyatomic ions are ions composed of two or more atoms covalently bonded together,
carrying a net charge. They differ from monatomic ions, which consist of only a single atom with
a charge.
What is the charge and composition of the sulfate ion?
✔✔ The sulfate ion has a charge of -2 and is composed of one sulfur atom covalently bonded to
four oxygen atoms.
How do you determine the molecular structure of a polyatomic ion such as nitrate (NO₃⁻)?
✔✔ The molecular structure of a polyatomic ion like nitrate can be determined using Lewis
structures, which show the arrangement of atoms and bonding, including resonance structures for
delocalized electrons.
What is the significance of resonance structures in polyatomic ions like carbonate (CO₃²⁻)?
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, ✔✔ Resonance structures in polyatomic ions like carbonate represent different ways the
electrons can be distributed within the ion, indicating that the actual structure is an average of
these resonance forms.
How do you name polyatomic ions using IUPAC nomenclature?
✔✔ Polyatomic ions are named based on their composition and charge. For example, the sulfate
ion is named based on the sulfur and oxygen content with the suffix "-ate" indicating the ion's
charge and size.
What is the charge and composition of the ammonium ion, and how does it differ from the
ammonia molecule?
✔✔ The ammonium ion has a charge of +1 and consists of one nitrogen atom and four hydrogen
atoms. It differs from the ammonia molecule, which is neutral with no net charge.
How can you predict the charge of a polyatomic ion based on its chemical composition?
✔✔ The charge of a polyatomic ion can be predicted by considering the overall balance of
electrons and protons in the ion, taking into account the common oxidation states of the
constituent atoms.
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