Quick Answer: Do polyatomic ions share electrons?

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.

Do ions share electrons?

In ionic bonding, electrons are completely transferred from one atom to another. … After the reaction takes place, the charged Na+ and Cl- ions are held together by electrostatic forces, thus forming an ionic bond. Ionic compounds share many features in common: Ionic bonds form between metals and nonmetals.

How are polyatomic ions bonded?

Polyatomic ions are covalently bonded groups of atoms with a positive or negative charge caused by the formation of an ionic bond with another ion. … While they behave externally like monatomic ions, their internal structure is more complicated due to the presence of two or more atoms in the polyatomic ion.11 мая 2018 г.

What are two characteristics of polyatomic ions?

A polyatomic ion is a group of two or more atoms covalently bonded or metallically bonded together to function as a single ion. An example would be the hydroxide ion, OH-. The oxygen and hydrogen are covalently bonded together, and function as a single anion with a 1- charge.

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Where do the extra electrons come from in polyatomic ions?

Re: Where/how do polyatomic ions obtain extra electrons? The electrons to make anions must come from electron donor atoms/molecules. Those are called cations and include elements such as sodium, potassium, calcium and many other elements on the left side of the periodic table or many other molecules.

How do electrons transfer?

Electron transfer is a process by which an electron moves from one atom or molecule to another. It is a key concept in redox chemistry – the chemistry of reactions where one reaction partner loses electrons (oxidation) while the other gains electrons (reduction).

Why ions are formed?

Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the …

Can two polyatomic ions bond?

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.

How do you know when a polyatomic ion is present?

So if you see two capital letters together in a ion then you will know that it is a polyatomic. Just like capitals are used to shout in texts, polyatomic ions shout at you to recognize they are there.

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How do polyatomic ions get their charge?

Similarly, we can think of a polyatomic ion as a molecule that has been ionized by gaining or losing electrons. In a polyatomic ion, the group of covalently bonded atoms carries a net charge because the total number of electrons in the molecule is not equal to the total number of protons in the molecule.

What polyatomic ions have a 2 charge?

The carbonate ion consists of one carbon atom and three oxygen atoms and carries an overall charge of 2−. The formula of the carbonate ion is CO2−3. The atoms of a polyatomic ion are tightly bonded together and so the entire ion behaves as a single unit.

What are polyatomic ions give two examples?

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.

How do you read polyatomic ions?

Use the first letter (for N, C, S or P) or letters (for Cl) of the nouns in the sentence for the main atom in the polyatomic ion. For example, to write the formula and charge for nitrate, use N as nitrogen for “Nick.” Count the consonants in the word. This is the number of oxygen atoms in the polyatomic ion.

Is NaCl a polyatomic ion?

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.

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How are polyatomic ions named?

Polyatomic ions are ions which consist of more than one atom. … The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit. Rule 1. The cation is written first in the name; the anion is written second in the name.

Where do extra electrons come from?

The electrons to make anions must come from electron donor atoms/molecules. Those are called cations and include elements such as sodium, potassium, calcium and many other elements on the left side of the periodic table or many other molecules. Polyatomic simply means it has more than one atom.

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