“The Physical and chemical properties of elements are a periodic fun

1.	“The Physical and chemical properties of elements are a periodic function of their atomic masses”. i. Name the law. ii. What do you understand by this statement? iii. How does it differ from the modern periodic law?
Answer» i. This law is known as Mendeleev’s periodic law. ii. Mendeleev’s periodic law means that if elements are arranged in the order of increasing atomic masses, then the properties of the elements are repeated after certain intervals or periods. iii. It differs in the following way - The Modern periodic law states that “The chemical and physical properties of elements are a periodic function of their atomic numbers”.

“The Physical and chemical properties of elements are a periodic function of their atomic masses”. i. Name the law. ii. What do you understand by this statement? iii. How does it differ from the modern periodic law?

Answer»

i. This law is known as Mendeleev’s periodic law.

ii. Mendeleev’s periodic law means that if elements are arranged in the order of increasing atomic masses, then the properties of the elements are repeated after certain intervals or periods.

iii. It differs in the following way - The Modern periodic law states that “The chemical and physical properties of elements are a periodic function of their atomic numbers”.

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“The Physical and chemical properties of elements are a periodic function of their atomic masses”. i. Name the law. ii. What do you understand by this statement? iii. How does it differ from the modern periodic law?

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