Table of Contents
What makes something polyatomic?
Polyatomic ions are ions which consist of more than one atom. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.
Why are polyatomic ions not considered molecules?
Answer: Explanation: Polyatomic ions contain two or more atoms bonded together in a manner that there is still a charge on the molecule. In each case the ion is composed of more than one atom.
What is a polyatomic in science?
Polyatomic ions are covalently bonded groups of atoms and having a positive or negative charge caused by the formation of an ionic bond with another ion. Compounds formed from such a combination of ions are polyatomic ionic compounds. But the polyatomic ion will behave as a single unit.
Where do polyatomic ions get their charge?
Polyatomic ions get their charge by transferring electrons from another element. For example In NaNO3 the Na loses an electron and the NO3 gains the electron. Since then now have opposite ionic charges (the Na becomes Na+ and the NO3 becomes NO3-) the form an ionic bond.
Is water polyatomic?
definition. …than two atoms are termed polyatomic molecules, e.g., carbon dioxide (CO2) and water (H2O).
Which one of the following is polyatomic ion?
| Symbols and Names of Some Common Polyatomic Ions and One Molecule | ||
|---|---|---|
| NH4+ | ammonium ion | hydroxide ion |
| PO43- | phosphate ion | hypochlorite ion |
| HPO42- | hydrogen phosphate | chromate ion |
| H2PO4- | dihydrogen phosphate | dichromate ion |
What’s the difference between a polyatomic ion and a molecule?
A polyatomic ion, also known as a molecular ion, is a covalently bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero. Unlike a molecule, which has a net charge of zero, this chemical species is an ion.
What are polyatomic give 2 examples?
The prefix poly- means “many,” in Greek, but even ions of two atoms are commonly referred to as polyatomic. Examples: Carbonate (CO32-), sulphate (SO42-), nitrate – NO3- and hydroxide ions OH- are all polyatomic ions.
Which one is a polyatomic molecule?
Molecules containing more than two atoms are termed polyatomic molecules, e.g., carbon dioxide (CO2) and water (H2O).
What is the difference between polyatomic ions and compounds?
The key difference between polyatomic ions and compounds is that the polyatomic ions have either a positive or negative electrical charge whereas the compounds have no net electrical charge. A polyatomic ion is a term that we use to name chemical species containing two or more atoms that have a net negative or positive electrical charge.
What are examples of a compound containing a polyatomic ion?
Indeed, most ionic compounds contain polyatomic ions. Well-known examples are sodium hydroxide (NaOH) with OH – as the polyatomic anion, calcium carbonate (CaCO 3), and ammonium nitrate (NH 4NO 3), which contains two polyatomic ions: NH + and NO 3 -.
What are the examples for polyatomic atoms?
Examples of Common Polyatomic Ions Acetate – C 2 H 3 O 2- Bicarbonate (or hydrogen carbonate) – HCO 3- Bisulfate (or hydrogen sulfate) – HSO 4- Hypochlorite – ClO – Chlorate – ClO 3- Chlorite – ClO 2- Cyanide – CN- Hydroxide – OH- Nitrate – NO3- Nitrite – NO2-
What are examples of polyatomic elements?
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