Structure Of A Molecule
Chapter Name : Atoms And Molecules |
Sub Topic Code : 102_09_03_03_03 |
Topic Name : Structure Of A Molecule |
|
Sub Topic Name : What Is An Ion? |
|
Introduction
Compounds composed of metals and nonmetals contain charged species. The charged species are known as ions.
Pre-Requisites:
Atoms, Molecules
Activity:
Get a packet of "oral re hydration Electral". On it the salts are mentioned which are important for our body. Many of them become ions when you dissolve it in water.
Real Life Question:
Which ions are most important for our body ? Try recalling from your biology chapters.
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Ions | Compounds composed of metals and nonmetals contain charged species. The charged species are known as ions. |
| Anion | A negatively charged ion is called an ‘anion’ |
| Cation | A positively charged ion is called an ‘cation’ |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
These ions are in salts of our daily lives, in washing powders.
Practical examples around us
| Examples | Explainations |
|---|---|
| Washing powder | When dissolved in water it forms ions, the charges attract dirt and clean the clothes. |
| Salt | It contains iodine ions which is important for our immune system. |
What you learn in Theory:
Ions, cations, anions
What you learn in Practice:
Particles carry charge, they form compounds