Periodic Classification of Elements, Why its necessary?

Hello Everyone,

Today, we are going to discussed about the Periodic Classification of Elements, but before start our topic, Do you remember elements, compound and mixture.

Mixture are like a food item that we consume, they contain everything in proportion that we desire. We can add or remove the substance according to our need.

and on the other hand Compounds which have substances in fixed proportion. If we change the proportion then it will affect the compound and we see random change.

For example:- H₂O (Water)

If we remove even 1 Hydrogen from H₂O which is water, composition changes and water as a compound doesn't exist. Thus fixed proportion must in compound.

Lastly We have the elements. These are the purest form of any substances. They are composed only the same type of atoms. They cannot split or break

So, Can we said Compounds and Mixture are made up of elements ?

Yes

In nature Elements are basic form of every materials that we find around.

What is classification ?

Classification means systematic arrangement in groups according to established criteria. For example:- In a shop bathing soap is stacked separately from washing soap.

I am asking if we can studied reactivity and physical properties of each of the elements. Is that possible?

Well all of these valid only If the elements are few.

Do you know no. of elements that exist?

Total number of element is 118 in which natural number is 98.

So how to studied each elements individually for its all properties.

That's why we need to organize

all elements.

TYPES OF CLASSIFICATION

1. Dobereiner's Triads

2. Newland' s Law of Octaves

3. Mendelev's Periodic Table

4. The Mordern Periodic Table

In next blog we discuss briefly about these classification.

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