Question

write short note on mendelews periodic law ​

Answer 1

• Mendeleev’s periodic table/ law

• Was written by Sir Dmitri mendeleev

• Form year 1869-1872 it took 3years for him to state it

• “On basis of this finding Mendeleev stated the following “

• *properties of elements are periodic function of their atomic masses

Answer 2

1) The Russian scientist Dmitri Mendeleev developed a periodic table during the period 1869 to 1872

2) Mendeleves periodic table was the most important step in classification of elements.

3) He considered fundamental properties of element, namely atomic mass as standard and arranged 63 elements known at that time in increasing order of atomic masses

4) Then he transferred those into periodic table.

5) This were the molecular formulae of hydrydes and oxides of the elements.

6) He observed that elements with similar chemical properties repeat after definite interval