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Balbharati solutions for Class 10th Board Exam Science and Technology - 1 chapter 2 - Periodic Classication of Element

SCC Class 10 Science and Technology part 1

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Balbharati SCC Class 10 Science and Technology part 1

SCC Class 10 Science and Technology part 1

Chapter 2: Periodic Classication of Element

Chapter 2: Periodic Classication of Element solutions [Pages 28 - 29]

Q 1 | Page 28

Rearrange the columns 2 and 3 so as to match with the column 1.

Column 1 Column 2 Column 3
i. Triad
ii. Octave
iii. Atomic number
iv. Period
v. Nucleus
vi. Electron
a. Lightest and negatively charged particle in all the atoms
b. Concentrated mass and positive charge
c. Average of the first and the third atomic mass
d. Properties of the eighth element similar to the first
e. Positive charge on the nucleus
f. Sequential change in molecular formulae
1.Mendeleev
2. Thomson
3. Newlands
4. Rutherford
5. Dobereiner
. Moseley
Q 2.1 | Page 28

Choose the correct option and rewrite the statement.
The number of electrons in the outermost shell of alkali metals is .....
(i) 1 (ii) 2 (iii) 3 (iv) 7

Q 2.2 | Page 28

Choose the correct option and rewrite the statement.
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ....
(i) Group 2      (ii) Group 16
(iii) Period 2    (iv) d-block

Q 2.3 | Page 28

Choose the correct option and rewrite the statement.
Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. Which of the following elements be present in the same group as X.
(i) Na  (ii) Mg  (iii) Al  (iv) Si

Q 2.4 | Page 28

Choose the correct option and rewrite the statement.
In which block of the modern periodic table are the nonmetals found?
(i) s-block       (ii) p-block
(iii) d-block    (iv) f-block

Q 4.1 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
3Li, 14He, 11Na, 15P Which of these elements belong to be period 3?

Q 4.2 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

 1H, 7N, 20Ca, 16S, 4Be, 18Ar Which of these elements belong tot he second group?

Q 4.3 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

7N, 6C, 8O, 5B, 13Al Which is the most electronegative element among these?

Q 4.4 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
 4Be, 6C, 8O, 5B, 13Al Which is the most electropositive element among these?

Q 4.5 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
 11Na, 15P, 17Cl, 14Si, 12Mg Which of these has largest atoms?

Q 4.6 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
 19K, 3Li, 11Na, 4Be Which of these atoms has smallest atomic radius?

Q 4.7 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.
13Al, 14Si, 11Na, 12Mg, 16S Which of the above elements has the highest metallic character?

Q 4.8 | Page 29

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

 6C, 3Li, 9F, 7N, 8O Which of the above elements has the highest nonmetallic character?

Q 5.1 | Page 29

Write the name and symbol of the element from the description. 
The atom having the smallest size.

Q 5.2 | Page 29

Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.

Q 5.3 | Page 29

Write the name and symbol of the element from the description.
The most electronegative atom.

Q 5.4 | Page 29

Write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.

Q 5.5 | Page 29

Write the name and symbol of the element from the description.
The most reactive nonmetal.

Q 6.1 | Page 29

Write a short note.
Mendeleev’s periodic law.

Q 6.2 | Page 29

Write a short note.
Structure of the modern periodic table.

Q 6.3 | Page 29

Write a short note.
Position of isotopes in the Mendeleev’s and the modern periodic table.

Q 7.1 | Page 29

Write scientific reason.
 Atomic radius goes on decreasing while going from left to right in a period.

Q 7.2 | Page 29

Write scientific reason.
Metallic character goes on decreasing while going from left to right in a period.

Q 7.3 | Page 29

Write scientific reason.
Atomic radius goes on increasing down a group.

Q 7.4 | Page 29

Write scientific reason.
Elements belonging to the same group have the same valency.

Q 7.5 | Page 29

Write scientific reason.
The third period contains only eight elements even through the electron capacity of the third shell is 18

Q 8.1 | Page 29

Write the name from the description.
The period with electrons in the shells K, L and M.

Q 8.2 | Page 29

Write the name from the description.
The group with valency zero.

Q 8.3 | Page 29

Write the name from the description.
The family of nonmetals having valency one.

Q 8.4 | Page 29

Write the name from the description.
The family of metals having valency one.

Q 8.5 | Page 29

Write the name from the description.
The family of metals having valency two.

Q 8.6 | Page 29

Write the name from the description.
The metalloids in the second and third periods.

Q 8.7 | Page 29

Write the name from the description.
Nonmetals in the third period.

Q 8.8 | Page 29

Write the name from the description.
Two elements having valency 4.

Chapter 2: Periodic Classication of Element

Balbharati SCC Class 10 Science and Technology part 1

SCC Class 10 Science and Technology part 1

Balbharati solutions for Class 10th Board Exam Science and Technology - 1 chapter 2 - Periodic Classication of Element

Balbharati solutions for Class 10th Board Exam Science and Technology - 1 chapter 2 (Periodic Classication of Element) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board SCC Class 10 Science and Technology part 1 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com are providing such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 10th Board Exam Science and Technology - 1 chapter 2 Periodic Classication of Element are Modern Periodic Law, Limitations of Mendeleev’s Classification, Achievements of Mendeleev’s Periodic Table, Mendeleev’s Periodic Table, Early Attempts at the Classification of Elements - Newlands’ Law of Octaves, Early Attempts at the Classification of Elements - Dobereiner’s Triads, Classification of Elements, Gradation in Halogen Family, Metallic- Nonmetallic Character, Atomic Size, Periodic Trends in the Modern Periodic Table, Periods and Electronic Configuration, Groups and Electronic Configuration, Modern Periodic Table and Electronic Configuration of Elements, Structure of the Modern Periodic Table, The Modern Periodic Table.

Using Balbharati Class 10th Board Exam solutions Periodic Classication of Element exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board Class 10th Board Exam prefer Balbharati Textbook Solutions to score more in exam.

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