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A monoatomic ion has only one atom examples are chloride, Cl-, fluoride, F-, sodium Na+

A polyatomic ion has more than one, e.g sulfate SO42-, nitrate, NO3-, mercurous, Hg22+

Poly is from the Greek and means "many"

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Does MgSO4 contain polyatomic ions?

Yes. Mg2+ is a monatomic ion, but SO42- is a polyatomic ion composed of two elements, sulfur and oxygen.


What does the ide ending in a polyatomic ion mean?

The ide ending in a polyatomic ion actually has no practical meaning involved. The polyatomic compounds that do contain the ide ending have it because they were thought to be monatomic at one time.


Is CaCl2 polyatomic ion?

No, it is a salt made of 1 Ca2+ ion and 2 Cl- ions with no total net charge. Hope this helps


Which polyatomic ion forms a neutrak compound when combined with a group 1A monatomic ion in a 1 1 ratio?

Since Group 1A monatomic ions have a charge of 1+, only a polyatomic ion with a charge of 1- can combine to form a compound in which the monatomic ions and polyatomic ions are present in a 1 to 1 ratio. The following polyatomic ions with a charge of 1- can form a neutral compound when combined with a group of 1A monatomic ion in a 1 to 1 ratio.acetate - C2H3O2-bicarbonate (or hydrogen carbonate) - HCO3-bisulfate (or hydrogen sulfate) - HSO4-chlorate - ClO3-chlorite - ClO2-cyanate - OCN-cyanide - CN-dihydrogen phosphate - H2PO4-hydroxide - OH-nitrate - NO3-nitrite - NO2-perchlorate - ClO4-permanganate - MnO4-thiocyanate - SCN- Source: http://chemistry.about.com/od/chartstables/tp/common-polyatomic-ions.htm


Which polyatomic ion forms a neutral compound when combined with a group 1A monatomic ion in a 1 to 2 ratio?

The sulfate ion (SO4^2-) forms a neutral compound when combined with a group 1A monatomic ion such as potassium (K+) in a 1:2 ratio. This results in the formation of K2SO4, which is a neutral compound.

Related Questions

Is potassium iodide a poly atomic ion?

No, potassium iodide is a compound composed of the monatomic ion K+ (potassium cation) and the monatomic ion I- (iodide anion). It is not a polyatomic ion.


What formula for a compound has monatomic and polyatomic ions present?

The answers have to be include monatomic and plyatomic ions present and ratio between positive and negative ions is one to two, and a group IIA element that loses one half of its total electrons upon ion formation is present, and the sum of the atomic numbers for the two elements involved in the polyatomic ion is 13.


Does MgSO4 contain polyatomic ions?

Yes. Mg2+ is a monatomic ion, but SO42- is a polyatomic ion composed of two elements, sulfur and oxygen.


Is S2-a polyatomic ion?

No. S2- is a monatomic ion. A polyatomic ion contains at least two atoms. You can identify a polyatomic ion as it will have the symbols for more than one element (OH-), a subscripted number (O22-), or a combination of the two (CO32-). The superscript in the ion only indicates the charge.


Is helium a polyatomic ion?

Helium is typically monatomic, even as an ion.


What is the name for an ion that contains more than one type of element?

monatomic Ion- contains one atom polyatomic ion- contains more than one atom


Is potassium a polyatomic ion?

No, infact Potassium is the chemical element with the symbol K.


Which polyatomic ion forms a neutral compound when combined with a group 17 monatomic ion in a 11 ratio?

Ammonium, NH4+


Is copper a monoatomic or polyatomic ion?

Copper can exist as both monoatomic (Cu+) and polyatomic (Cu2+) ions depending on its oxidation state. Copper typically forms a +1 or +2 ion in ionic compounds.


Is oxide polyatomic ion?

No, oxide is just an oxygen ion. The formula is just O(-2 charge), hence not a polyatomic ion. Hydoxide on the other hand is a polyatomic ion, formula being OH(-1 charge)


Is carbonate ion a monatomic ion?

No, a carbonate ion (CO3^2-) is a polyatomic ion, meaning it is composed of multiple atoms covalently bonded together. In the case of carbonate, it is made up of one carbon atom and three oxygen atoms.


Which polyatomic ion forms a neutral compound when combined with a group 1a monatomic ion in a 1 2 ratio?

The sulfate ion (SO4^2-) forms a neutral compound when combined with a group 1a monatomic ion in a 1:2 ratio. This means that for every one monatomic ion from group 1a, two sulfate ions are needed to form a neutral compound.