Table of Contents
- 1 Can an anion be polyatomic?
- 2 Are polyatomic ions positive or negative?
- 3 What are examples of polyatomic ions in compounds?
- 4 How do you name cations and anions?
- 5 Why are most polyatomic ions anions?
- 6 What are polyatomic ions write a polyatomic cation and anion?
- 7 What are some examples of polyatomic ions?
- 8 What are the names of These polyatomic ions?
Can an anion be polyatomic?
3, can be called either bicarbonate or hydrogen carbonate. 2O. First, think of the -ate ion as being the “base” name, in which case the addition of a per- prefix adds an oxygen….Nomenclature of polyatomic anions.
| bromide | nitride |
|---|---|
| hypobromite | hyponitrite |
| bromite | nitrite |
| bromate | nitrate |
Are polyatomic ions positive or negative?
Explanation: Polyatomic ions usually have a charge because the compound itself has either gained an extra electron (making the charge negative) or it has lost an electron (making the charge more positive). The most common polyatomic ions have negative charges.
What is polyatomic cation and anion?
Polyatomic Cation →A group of atoms carrying a positive charge is known as polyatomic cation. Example of polyatomic cation: NH4+ Polyatomic Anion→A group of atoms carrying a negative charge is known as polyatomic anion.
Are polyatomic ions covalent or ionic?
Polyatomic ions are ions that are composed of two or more atoms that are linked by covalent bonds, but that still have a net deficiency or surplus of electrons, resulting in an overall charge on the group. A metal plus a polyatomic ion yields an ionic compound.
What are examples of polyatomic ions in compounds?
Indeed, most ionic compounds contain polyatomic ions. Well-known examples are sodium hydroxide (NaOH) with OH- as the polyatomic anion, calcium carbonate (CaCO3), and ammonium nitrate (NH4NO3), which contains two polyatomic ions: NH+ and NO3-.
How do you name cations and anions?
The cation has the same name as its element. For example, K+1 is called the potassium ion, just as K is called the potassium atom. The anion is named by taking the elemental name, removing the ending, and adding “-ide.” For example, F-1 is called fluoride, for the elemental name, fluorine.
Which of the following anions is polyatomic?
| Symbols and Names of Some Common Polyatomic Ions and One Molecule | ||
|---|---|---|
| NH4+ | ammonium ion | cyanide ion |
| HSO4- | hydrogen sulfate ion | thiocyanate ion |
| SO32- | sulfite ion | carbonate ion |
| NO3- | nitrate ion | hydrogen carbonate |
Are all polyatomic ions anions?
The vast majority of polyatomic ions are anions, many of which end in -ate or -ite. Notice that in some cases, such as nitrate (NO−3) and nitrite (NO−2), there are multiple anions that consist of the same two elements.
Why are most polyatomic ions anions?
Most polyatomic ions contain oxygen and are negatively charged anions because the oxygen atoms attract electrons. When it shares electrons covalently with four hydrogen atoms, four electrons are available from the hydrogen or one more than is needed.
What are polyatomic ions write a polyatomic cation and anion?
A group of atoms carrying a charge is known as polyatomic ion. Polyatomic Cation →A group of atoms carrying a positive charge is known as polyatomic cation. Example of polyatomic cation: NH4+ Polyatomic Anion→A group of atoms carrying a negative charge is known as polyatomic anion.
Which are polyatomic ions?
Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.
What are the names and formulas of polyatomic ions?
Common Polyatomic Ions Name(s) Formula Name(s) Formula ammonium NH4 + acetate CH3COO-C2H3O2-bromate BrO3-carbonate CO3 2-chlorate ClO3-chlorite ClO2-chromate CrO4 2-cyanide CN-dichromate Cr2O7 2-hydrogen carbonate bicarbonate HCO3-hydrogen sulfate bisulfate HSO4-hydrogen phosphate biphosphate HPO4 2-hydroxide OH-
What are some examples of polyatomic ions?
An example of a polyatomic ion is the hydroxide ion; consisting of one oxygen atom and one hydrogen atom, hydroxide has a charge of −1.
What are the names of These polyatomic ions?
Phosphate
What are the rules for naming polyatomic ions?
Rules for Naming Ionic Compounds Containing Polyatomic Ions. Polyatomic ions are ions which consist of more than one atom. For example, nitrate ion, NO 3 -, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit. Rule 1.