Question

write mendeleef periodic law describe two uses of mendeleef table​

Answer 1

Answer:

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.The columns of the table, called groups, contained elements with similar properties. Mendeleev's periodic table was a good model because it could be used to predict unknown elements and their properties

Uses of the periodic table:

Predicting properties of discovered and undiscovered elements.

Sorting elements in a sensible way by grouping them with other elements with similar properties to understand and find them quicker.

Identifying the elements already discovered by mankind.

Answer 2

Answer:

physical and chemical properties of elements are periodic functions of atoms mass

uses of Mendeleev's periodic table are

• gaps left by him and his prediction about those elements helped to discover new elements
• arrangement of elements in groups and periods was major advantage

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