#Smallest atomic radius pdf

(i) This table onsists of 18 vetical clumns called groups and 7 horizontal rows called periods. Properties of modern periodic table are: – Write four properties of modern periodic table.

Name of element of second period are lithium beryllium, boron, carbon, nitrogen, oxygen, fluorine. (ii) In every period, elements are arranged in increasing order of their atomic masses. (i) It consists of 8 vertical columns called groups and 6 horizontal rows, called period. Two main characteristics of Mendeleev’s periodic table are: Write two main characteristics of Mendeleev’s periodic table and write name of elements of second period. This resamblance is called diagonal relationship. In how many groups and periods, the Modern Periodic Table of elements is divided?Įxplain the diagonal relationship by taking exmaple of lithium (Li) and magnesium (Mg).ĭiagonal Relationship : The first three members of second period show similarities with the members of their own groups and with the elements diagonally placed in the higher groups. The horizontal rows in the long form of the Priodic Table are called periods. What do you understand by periods in the Periodic Table? Mendeleef’s periodic table was based on which law? Who classified the elements on the basis of fundamental properties of elements like atomic mass. Newland’s Law of Octave states that “when elements are arranged in order of increasing atomic weights, then every eighth element has properties similar to that of the first element.” Mendeleev’s Periodic Law states that, “The properties of the elements are periodic function their atomic masses.” What was Dobereiner’s basis of classifying elements?Īccording to Dobereiner, elements having similar properties can be arranged in triads in which atomic mass of the middle element is the mean of the atomic masses of the other two elements. Class 10 Science Chapter 5 Extra Questions and Answers Periodic Classification of ElementsĮxtra Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers Solutions Periodic Classification of Elements Extra Questions Very Short Answer Type

#Smallest atomic radius pdf

In this page, you can find CBSE Class 10 Science Chapter 5 Extra Questions and Answers Periodic Classification of Elements Pdf free download, NCERT Extra Questions for Class 10 Science will make your practice complete.