Mendeleev's periodic law write short note
Answers
Mendeleev arranged 63 elements known at that time in the periodic table. According to Mendeleev “the properties of the elements are a periodic function of their atomic masses.” The table consists of eight vertical column called ‘groups’ and horizontal rows called ‘periods’.
Merits of Mendeleev’s Periodic Table:
(i) At some places the order of atomic weight was changed in order to justify the chemical and physical nature.
(ii) Mendeleev left some gap for new elements which were not discovered at that time.
(iii) One of the strengths of Mendeleev’s periodic table was that, when inert gases were discovered they could be placed in a new group without disturbing the existing
order.
Hey there!
- Mendeleev's periodic law states that physical and chemical properties of elements are periodic function of their atomic masses.
- He arranged the elements in increasing order of their atomic masses and was the first person to give all the elements known at that time.
- The zero period was not discovered at that time. Mendeleev's periodic table had 63 elements.
- He also left some spaces in the periodic table so that the elements can be placed which would be discovered later on.
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