Which is a polyatomic ion?
Which is a polyatomic ion?
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 is a polyatomic ion quizlet?
A polyatomic ion is a molecule (more than one atom) that has an electric charge. For example, the phosphate group shown has one phosphate, 4 oxygens and a -3 charge. Acetate. Chlorate. Carbonate.
Is polyatomic ion a compound?
However, the atoms in polyatomic ions are held together by covalent bonds. Compounds containing polyatomic ions are ionic compounds. The basic rule of thumb is ionic compounds take place between a positive ionic metal and a negative ionic non-metal.
What is a polyatomic ion simple explanation?
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.
Are polyatomic ions metals?
A polyatomic ion, also known as a molecular ion, is a covalent 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.
Why are polyatomic ions?
The prefix poly- means many, so a polyatomic ion is an ion that contains more than one atom. This differentiates polyatomic ions from monatomic ions, which contain only one atom.
Why are some ions known as polyatomic ions?
What is ion quizlet?
Ion. An atom, or group of atoms, that has a net positive or negative charge from losing or gaining electrons.
Are polyatomic ions cations or anions?
Note that the vast majority of the ions listed are anions—there are very few polyatomic cations. 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.
Are polyatomic ions molecular 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.
Are all polyatomic ions anions?
Are polyatomic ions solid?
Structurally, polyatomic ions are similar to the ionic solids we saw earlier. An example of a simple ionic compound, NaCl, is seen below, alongside a more complex ionic solid, AgClO3-. Notice how both are tightly packed and form a repeating pattern, which lends both compounds strength and brittleness.
Are polyatomic ions anions or cations?
Are polyatomic ions nonmetals?
Groups of covalently bonded semimetals or nonmetals which are charged are called polyatomic ions. Common examples include sulfate dianion, nitrate anion, phosphate trianion, etc. These polyatomic ions are commonly paired with metals forming ionic compounds.
How do polyatomic ions form?
Just as ions are formed when neutral atoms gain or lose electrons, a polyatomic ion is formed when a neutral molecule gains or loses electrons.
What are ions in chemistry quizlet?
What is an Ion? An atom or group of atoms that have a net electrical charge.
Are polyatomic ions covalent?
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.
Are polyatomic ions covalent compound?
Polyatomic ions are covalent compounds that have an overall charge. In the ammonium ion, NH4 , nitrogen is covalently bonded (shares electrons)to four separate hydrogen atoms.
Which statements describe polyatomic ions?
So the correct answer is:
