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NCERT Solutions for Class 10th Science Chapter 5 : All Q&A Our CBSE Class 10 Chemistry explanations are presented by qualified teachers. The Class 10 Chemistry Notes are created as per the latest CBSE Class 10 myboat079 boatplans�s not all, + questions (with answers) along with 10+ sample papers on our portal . NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progression is presented here for the benefit of the students preparing for the board examination. It is very important for the students to get well versed with these solutions Ncert Solutions Class 10th Chemistry Chapter 3 Log of NCERT to get a good score in Ncert Solutions Class 10th Chemistry Chapter 3 Youtube Class 10 examination. These NCERT problems are solved by experts at BYJU�S. NCERT Solutions for class X Science all chapter are in PDF updated for new academic session Online view is also being provided for the convenience of students. 10th Science Chapter 5 Periodic Classification of elements all intext questions and exercises questions are given below.
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These elements were segregated from one another on the basis Ncert Solutions Class 10th Chemistry Chapter 5 List of whether they were gases, metals or non-metals. A German chemist, known to all as Johann Wolfgang Dobereiner, had attempted to group elements based on their properties.

Formation of these groups was known as triads. In this section of the periodic classification of elements in Class 10 solutions, learn about how in this table, every eighth element displays properties that are similar to the first one. This law may appear in the examination so students will need to memorise it thoroughly. In this section of the periodic classification of elements of class 10 NCERT solutions, an introduction to Mendeleev's periodic table has been provided.

In this table, elements were arranged, based on their increasing atomic masses. This periodic table present in Class 10 Science Chapter 5 NCERT solutions was able to predict the existence of certain elements that back then had not been discovered back then. Hydrogen in this table does not have a fixed position, and Mendeleev also fails to provide any explanation regarding the atomic masses being in the wrong order for some elements. Elements present in this table of Class 10 Periodic Classification of Elements solutions have been arranged on the basis of their increasing atomic masses.

Students will need to learn the order of the elements in this periodic table for their examinations. This modern periodic table that we find in Class 10 Science Ch 5 solutions, consists of 7 periods and 18 groups. Elements in a period are set on the basis on the maximum number of electrons present. There are different trends in the modern periodic table that have been noticed, which students will learn about in this section.

Question 2: Mention the position of i hydrogen and ii isotopes of same element in the modern periodic table. Answer 2: i Hydrogen is placed at the top of group IA. Question 1: Why is atomic number of an element more important to a chemist than its atomic mass?

Or Atomic number is considered to be a more appropriate parameter than atomic mass for classification of elements in a periodic table. Answer 1: The properties of element depend upon the number of electrons present in the valence shell which are related to atomic number. Thus the properties of different elements can be compared if we know their atomic numbers.

On the other hand, atomic mass can in no way determine the chemical properties of elements, because is does not vary regularly with gradation in the chemical properties of elements. Justify your answer in each case. Answer 2: a Electronic configuration of X is 2, 8, 8, 2. Its valency is 2. It belongs to group 2 and can lose 2 electrons easily.

Since valency of Y is -2 2, 6. Question 3: The element Li, Na and K, each having one valence electron, are in period 2, 3 and 4 respectively of Modern Periodic Table. Give reason to justify your answer in each case. Answer 3: a Group 1. These all have one valency. Its outermost orbit is very near Class 10th Chemistry Chapter 5 Ncert Solutions Limited to the nucleus and so removal of electron is a little difficult.

It occupies three shells. Download Offline Solutions Apps to use without internet, free of cost. Now, you can easily understand those elements and prepare for your Chemistry board exam with our chapter-wise Chemistry NCERT textbook solutions. These solutions by Chemistry experts will help you to study the different types of elements, chemical reactions and more.

If you have any doubts while studying, you can ask your doubt on the TopperLearning portal. An academic expert will respond to your query within 24 hours. Enter the OTP sent to your number Change. Resend OTP. Starting early can help you score better! Avail Offer. Ok Cancel.

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