Question

write short note on mendeleer's periodic law​

Answer 1

Answer:

noun Chemistry.

the law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.

Answer 2

Answer:

Mendeleev's periodic law states that physical and chemical properties of elements are a periodic function of their atomic masses.

Mendeleev's Periodic table .

→ When Mendeleev started his work , 63 elements were known at that time .

→ He examined the relationship between the atomic masses of the elements and their physical and chemical properties .

→  Mendeleev concentrated on the compounds formed by elements with oxygen and hydrogen .

→It has 8 vertical columns called groups and 7 horizontal rows known as periods.

→Order of atomic weights was changed at places to justify properties of an element.

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