Find CBSE Class 10 NCERT Solutions for Periodic Classification of Elements. It has been framed keeping the Students' perspective in mind. This will help the Students with easy and simple understanding of the concept and technique employed in solving this NCERT Solution as per the CBSE Marking Scheme.
Q. What were the criteria used by Mendeleev in creating his Periodic Table?
Sol. Mendeleev's periodic table was based on the observation that the properties of elements are a periodic function of their atomic masses. This statement means that if elements are arranged in the increasing order of their atomic masses, then their properties get repeated after regular intervals.
Q. Why do you think the noble gases are placed in a separate group?
Sol. Noble gases are inert in nature. They show different properties from the all other elements. Thus, they are placed in a separate group.
Sol. Mendeleev's periodic table was based on the observation that the properties of elements are a periodic function of their atomic masses. This statement means that if elements are arranged in the increasing order of their atomic masses, then their properties get repeated after regular intervals.
Q. Why do you think the noble gases are placed in a separate group?
Sol. Noble gases are inert in nature. They show different properties from the all other elements. Thus, they are placed in a separate group.
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