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Maharashtra State BoardSSC (English Medium) 10th Standard

Complete the following flow chart. Modern periodic table - Science and Technology 1

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Complete the following flow chart.

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Chapter 2: Periodic Classication of Element - Solve the following Questions

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SCERT Maharashtra Science and Technology 1 [English] 10 Standard SSC
Chapter 2 Periodic Classication of Element
Solve the following Questions | Q 2

RELATED QUESTIONS

Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.


How does the metallic character of elements in  Modern Periodic Table vary on moving from left to right in a period, and (ii) down a group?Give reason to justify your answer.


What is periodicity in properties of elements with reference to the Modern Periodic Table? 


Fill in the following blank with suitable word:
 The basis for modern periodic table is ...............


Give two example of group 18 elements.


On which side of the periodic table will you find non-metals?


What is the name of those elements which divide metals and non-metals in the periodic table?


The modern periodic table was prepared by ______.


Which element has the electronic configuration 2, 8, 2?


State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.


Explain why, the first period of the periodic table has only two elements whereas second period has eight elements


What are the advantages of the periodic table?


Name the scientist who stated the modern periodic law.


What are horizontal rows and vertical columns in a periodic table known as?


Name two elements in Alkaline earth metals.


Name two elements in each case: 

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Name the type of elements which have outermost shell incomplete.


State its position in the periodic table?


Answer the following in respect of element `31/15 P`

Give its electronic configuration


State the modern periodic law.


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Name and state the following with reference to the elements of the first three periods of the periodic table.

A covalent compound formed by an element in period 2 and a halogen.


The horizontal rows in a periodic table are called _____.


Give the symbol and valency of the following element and radical.

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State what is meant by the term chemical formula.


Name the following:

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Which of the following statements about the Modern periodic table is correct?


The d-block elements are called as _______ elements.


Write an Explanation.

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Position of A, B and C three elements is given in the table from the modern periodic table. Answer the following questions.

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2 ----- A
3 B -----
4 ----- C
  1. What is A element metal or nonmetal?
  2. Which is the outermost orbit of element B?
  3. Identify C element and it's physical state.

Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______ 


The element which has the least tendency to lose electrons is ______  


On moving from left to right in a period in the periodic table, the size of the atom ______ 


Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.

It has a similar structure to diamond.


Noble gases are placed in the ______ group in the modern periodic table.


State the group and period, of the element having three shells with three electrons in valence shell.


Name the metalloids in the first twenty elements.


Name the non-metals in the first twenty elements.


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