Table of Contents
What is a polyatomic ion simple definition?
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 called?
What are 3 examples of polyatomic ions?
Examples of Common Polyatomic Ions
- Acetate – C2H3O2–
- Bicarbonate (or hydrogen carbonate) – HCO3–
- Bisulfate (or hydrogen sulfate) – HSO4–
- Hypochlorite – ClO–
- Chlorate – ClO3–
- Chlorite – ClO2–
- Cyanide – CN-
- Hydroxide – OH-
Why are there polyatomic ions?
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. Being familiar with the most common polyatomic ions will be helpful for recognizing ionic compounds and predicting their reactivity.
What is the use of polyatomic ions?
Polyatomic ions often are useful in the context of acid–base chemistry and in the formation of salts.
What are polyatomic ions Class 11?
Complete step by step answer:A polyatomic ion is also known as a molecular ion and it is a charged chemical species (ion) composed of two or more atoms covalently bonded. It can also be known as a metal complex that acts as a single unit. Example – SO2−4,CO2−3.
What are polyatomic ions give Class 9?
Polyatomic ions: Those ions which are formed from groups of joined atoms are called polyatomic ions. Compound ions are also called polyatomic ions. Ammonium ion NH4+, is a compound ion which is made up of two types of atoms joined together nitrogen and hydrogen.
Where do polyatomic ions occur?
. A polyatomic ion is an ion which is composed of covalently bonded atoms. . Polyatomic ions exist in nature as dissolved in water or precipitated as solids.
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 common polyatomic ions?
A polyatomic ion is a charged chemical species with more than one type of atom present. Polyatomic ions are used worldwide on a daily basis, some common ones being nitrate (#”NO”_3^-#), perchlorate (#”ClO”_4^-#), and ammonium (#”NH”_4^+#).
What are the characteristics of a polyatomic ion?
A polyatomic ion, also known as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit. The prefix poly- means “many,” in Greek, but even ions of two atoms are commonly referred to as polyatomic.
Which polyatomic ions has a positive charge?
The most common types of ternary compounds consist of a metallic cation (positive ion) and a polyatomic anion (negative ion). The only common polyatomic ion with a positive charge is the ammonium ion.