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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.
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What element do most of the polyatomic ions have in the formula?
Examples: oxygen, sulfur, carbon, phosphorus etc.
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 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.
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 a good practice to use when balancing equations?
A good practice when balancing equations is to start by balancing the most complex or uncommon elements first, such as those in polyatomic ions or compounds. Then, balance simpler elements like single atoms last. Remember to adjust coefficients, not subscripts, to balance the equation.
What element do most of the polyatomic ions have in the formula?
Examples: oxygen, sulfur, carbon, phosphorus etc.
Are a vast majority of polyatomic ions cations?
No. Most polyatomic ions are anions.
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.
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.
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.
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.
What element do most polyatomic ions contain?
Oxygen
Characteristic is shared by most simple polyatomic ions?
They are anions
What characteristics is shared by most simple polyatomic ions?
Most simple polyatomic ions have an overall charge due to the gain or loss of one or more electrons. They are typically made up of a small number of atoms bonded together and have a specific charge associated with their structure. These ions are generally stable and can participate in chemical reactions to form compounds.
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.
When must parentheses be used in a formula for a compound?
Parentheses are used when you have more than 1 of a certain polyatomic ion. For example, the chemical compound Magnesium nitrate. It's chemical formula is Mg(NO3)2 A Nitrate ion (NO3) has a -1 charge and Magnesium(Mg) has a +2 charge. So when they form a chemical compound together, you drop the charges down to the other ion (nitrate is minus 1 so you need 1 magnesium. Magnesium is +2, so you need 2 nitrates), so there must be two nitrate ions to make Magnesium Nitrate.
Which atoms form ions most easily?
unstable atoms
