What is an ion explain?
An ion is an atom or group of atoms where the number of electrons is not equal to the number of protons.
Electrons have a negative charge, whereas protons have a positive charge.
When an atom gains electrons, this results in a negative charge..
What is an ion Class 9?
Metals and non-metals leads to the formation of Compounds that possess charged species. These charged species are called ions. These charged species can be either positively charged called cation or negatively charged called anion. … Ions possessing more than one atom are termed as polyatomic ions.
What is ion explain with example?
An ion is an atom or a group of atoms in which the number of electrons is different from the number of protons.If the number of electrons is less than the number of protons the practical is a positive ion, also called a cation. Ex : sodium ion Na+ , chloride ion cl- , and oxide ion O2 –
What is ion give example?
An atom that has gained electrons and has a negative charge is an anion. An atom that has lost electrons and has a positive charge is a cation. Atoms gain or lose electrons in order to become more stable by having a full outermost shell of electrons. Examples of anions include hydride, fluoride, and nitride.
What is polyatomic ion give example?
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 are ions used for?
Electrolytes produce ions and enable the body to function These ions enable the flow of electrical signals through the body. Electrolytes play an important role in the body; they regulate the osmotic pressure in cells and help maintain the function of muscle and nerve cells.
What is ion in physics?
Ion, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions.
What are the 2 types of ion?
The two types of ions are cation and anions. When an atom loses electrons, it becomes positive. We call the positive ion a cation.
What is free ion?
free ion. [¦frē ′ī‚än] (physical chemistry) An ion, such as found in an ionized gas, whose properties, such as spectrum and magnetic moment, are not significantly affected by other atoms, ions, or molecules nearby.
What is the difference between atom and ion?
Atoms vs. Ions. Atoms are neutral; they contain the same number of protons as electrons. By definition, an ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.
What are ions Class 8?
Ions are atoms that have a positive or negative charge because they have unequal numbers of protons and electrons. If atoms lose electrons, they become positive ions, or cations. If atoms gain electrons, they become negative ions, or anions.