Question

Notes on periodic classification of elements

Answer 1

the elements are different from one another to another one based on the periodic law of classification every element has different atomic number and different atomic mass .
for an atom in the last cell is known as atomic seller screen in shell
the periodic table has 118 elements
the periodic table has four blocks S block P block D block F block
S block is containing left side of the periodic table P block is containing right side of the periodic table F Block is containing down of the periodic table and D block is containing in the middle of the periodic table

Answer 2

These are the notes for

Cbse , class 10 , science , chapter 5 , Periodic Classification Of Elements

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