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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10

______ forms the basis of the modern periodic table. - Science

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Question

______ forms the basis of the modern periodic table.

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Solution

Atomic number forms the basis of the modern periodic table.

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Chapter 8: Periodic Classification of Elements - Evaluation [Page 122]

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Samacheer Kalvi Science [English] Class 10 SSLC TN Board
Chapter 8 Periodic Classification of Elements
Evaluation | Q II. 3. | Page 122

RELATED QUESTIONS

Which of the following statement is correct in regard to the classification of elements?

(a) Elements in modern periodic table are arranged on the basis of increasing atomic masses.
(b) Elements in Mendeleev's periodic table are arranged on the basis of increasing atomic numbers.
(c) In modern periodic table, the element nickel of lower atomic mass is kept before the element cobalt of higher atomic mass.
(d) In modern periodic table, the isotopes of chlorine having different atomic masses are kept in the same group.


What is a group in the periodic table?


What are the advantages of the periodic table?


How many groups and periods does the modern periodic table have?


Correct the statement.

Transition elements are placed at extreme right of the periodic table.


State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?

 

 

Identify gas A in the following experiment. 


Which one of the following elements exhibit maximum number of valence electrons?


The three elements A, B and C with similar properties have atomic masses X, Y and Z respectively. The mass of Y is approximately equal to the average mass of X and Z. What is such an arrangement of elements called as? Give one example of such a set of elements.


An element has 2 electrons in its N shell.

Is it a metal or a non-metal?


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