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What polyatomic ions has the most atoms per formula unit?
The polyatomic ion with the most atoms per formula unit is the peroxydisulfate ion, ( \text{S}_2\text{O}_8^{2-} ), which contains a total of 10 atoms (2 sulfur and 8 oxygen atoms). Other complex polyatomic ions, such as certain phosphate or silicate ions, can also contain a large number of atoms, but peroxydisulfate is notable for its high atom count in a single formula unit.
Which polyatomic ion has 4 oxygens?
The three most common such ions probably are sulfate, with the formula SO4-2, chromate, with the formula CrO4-1, and perchlorate, with the formula ClO4-1.
Are polyatomic ions positively charged?
Most polyatomic ions have a negative charge. There are only 2 positive polyatomic ions; Mercury(I) ion and Ammonium ion. False.
Which of these pairs of elements is most likely to be part of a polyatomic ion?
The pair of elements most likely to be part of a polyatomic ion is sulfur (S) and oxygen (O). This combination often forms polyatomic ions such as sulfate (SO4^2-) or sulfite (SO3^2-).
What is an oxoanion?
A polyatomic ion is an ion containing two or more atoms, usually of more than one element. An example is the nitrate ion. (NO−3 - ) This is 1 nitrogen with 3 oxygen's attached and bears a charge of 1-. The most common polyatomic ions are anions that contain oxygen attached to some other element called an oxoanion and are typically combinations of oxygen with a nonmetal. For a given nonmetal, there are often two or more common oxoanions SO32-(sulfite ion) 1 sulfur 3 oxygens and a charge of 2-,
What element do most polyatomic ions contain?
Oxygen
Are a vast majority of polyatomic ions cations?
No. Most polyatomic ions are anions.
What polyatomic ions has the most atoms per formula unit?
The polyatomic ion with the most atoms per formula unit is the peroxydisulfate ion, ( \text{S}_2\text{O}_8^{2-} ), which contains a total of 10 atoms (2 sulfur and 8 oxygen atoms). Other complex polyatomic ions, such as certain phosphate or silicate ions, can also contain a large number of atoms, but peroxydisulfate is notable for its high atom count in a single formula unit.
Which polyatomic ion has 4 oxygens?
The three most common such ions probably are sulfate, with the formula SO4-2, chromate, with the formula CrO4-1, and perchlorate, with the formula ClO4-1.
Are polyatomic ions positively charged?
Most polyatomic ions have a negative charge. There are only 2 positive polyatomic ions; Mercury(I) ion and Ammonium ion. False.
Characteristic is shared by most simple polyatomic ions?
They are anions
Do Polyatomic ions always contain oxygen?
In most of the cases it is true but SCN- , Transition metals complex ions and some organic poly atomic ions do not contain oxygen.
Polyatomic ions always carry a positive charge?
False. Polyatomic ions can carry either charge. For example, consider the sulphate ion - SO42- or the hydroxide ion, OH-. Negative polyatomic ions are, in fact, generally more common than positive ones.
How do write the formula for a compound containing a polyatomic ion?
Write the symbol of the cation first, than the anionState the combining capacity for each element over each of the ionsUse the 'cross over' method and reduce the numbers to the lowest ration (without changing the formula for the ion)e.g. Na + SO4 2- -> Na2SO4
What are the usual endings for the names of polyatomic ions?
The usual endings for polyatomic ions are "-ate" and "-ite." The "-ate" ending signifies the ion with the larger number of oxygen atoms, while the "-ite" ending signifies the ion with one less oxygen atom.
How are polyatomic ions usually charged?
It depends but most are negative, e.g. nitrite, sulfate, nitrate, sulfite, chlorite, phosphate, phosphite, permanganate, chromate, dichromate etc. There are however, polyatomic ions that are positively charged.
Which of these pairs of elements is most likely to be part of a polyatomic ion?
The pair of elements most likely to be part of a polyatomic ion is sulfur (S) and oxygen (O). This combination often forms polyatomic ions such as sulfate (SO4^2-) or sulfite (SO3^2-).
