Interpretation:
The periodic law needs to be defined.
Concept introduction:
In the Mendeleev’s periodic table, elements with similar characteristics present in vertical rows known as groups. The horizontal rows are known as periods. While arranging elements in groups and periods, Mendeleev laid more stress on similar properties and made certain adjustments in their atomic masses.
Answer to Problem 28A
Periodic law states that the chemical and physical properties of elements are periodic function of the
Explanation of Solution
Dmitri Mendeleev was the scientist who gave the periodic law based on
According to the periodic law, atomic number is the basis of arrangements of elements in the periodic table.
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Glencoe Chemistry: Matter and Change, Student Edition
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