Structure Of A Molecule
Chapter Name : Atoms And Molecules |
Sub Topic Code : 102_09_03_03_01 |
Topic Name : Structure Of A Molecule |
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Sub Topic Name : Molecules Of Elements |
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Introduction
Discuss “Some compounds which have only one element and we use in daily lives”
Pre-Requisites:
Atoms, Elements
Activity:
A molecule of oxygen consists of two atoms of oxygen and hence it is known as a diatomic molecule, oxygen. If 3 atoms of oxygen unite into a molecule, instead of the usual 2, we get ozone.
Real Life Question:
“We use so many metals. Do all of them contain only one single element?”
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| atomicity | The number of atoms constituting a molecule is known as its atomicity. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Molecular models | See how the atoms of one element combine in different numbers to form different molecules. |
Real life uses :
These molecules of elements are very useful in chemical reactions as we get pure elements from them.
Practical examples around us
| Examples | Explainations |
|---|---|
| Diamond | It contains only carbon. |
| Metals | They contain only one element, like copper contains only copper. |
What you learn in Theory:
The molecules of an element are constituted by the same type of atoms.
What you learn in Practice:
We can use these compounds of element to obtain element in pure form.