explain the periodic clasification
Answers
According to Mendeleev's periodic table
1: Mass is the basis of periodic classification of elements.
2:Elements were arranged in increasing order of their masses.
3: With masses Mendeleev also placed the elements on the basis of nature of oxides and hydrides formed by the elements.
4:However cobalt with a greater Mass than nickel was placed before which was on the basis of oxide and hydride formed by it.
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Periodic Classification of Elements
Matter is something that has some mass and occupies some space is what we have learnt in our schools. Subsequently, matter consists of molecules, which are made up of compounds of various combinations of atoms. Mankind has always been curious to study about the properties and behaviour of matter and identified that there are different types of atoms that ultimately make up the matter. We all know we refer to this type of atoms by the term ‘elements’. This article discusses the periodic classification of elements & how it changed with time.
It was recent that IUPAC named 4 more elements and added them to The Modern periodic table – which we will discuss upon later in this article. Science has developed so much that from just 31 elements identified in 1800, we have discovered and named 117 elements at present. Right from the initial days, scientists did feel a need to classify the elements so that their properties and behaviour can be studied collectively, thus simplifying an otherwise tedious process of learning about each element one at a time.
