# Samacheer Kalvi Books: Tamilnadu State Board Text Books Solutions

## Samacheer Kalvi 10th Science Chapter 8 Periodic Classification of Elements Notes PDF Download: Tamil Nadu STD 10th Science Chapter 8 Periodic Classification of Elements Notes

 Samacheer Kalvi 10th Science Chapter 8 Periodic Classification of Elements Notes PDF Download: Tamil Nadu STD 10th Science Chapter 8 Periodic Classification of Elements Notes

## Samacheer Kalvi 10th Science Chapter 8 Periodic Classification of Elements Notes PDF Download

We bring to you specially curated Samacheer Kalvi 10th Science Chapter 8 Periodic Classification of Elements Notes PDF which have been prepared by our subject experts after carefully following the trend of the exam in the last few years. The notes will not only serve for revision purposes, but also will have several cuts and easy methods to go about a difficult problem.

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### Samacheer Kalvi 10th Science Periodic Classification of Elements Textual Evaluation Solved

Ex 3.14 Class 10 Samacheer Question 1.
The number of periods and groups in the periodic table are ____.
(a) 6, 16
(b) 7, 17
(c) 8, 18
(d) 7, 18.
(d) 7, 48.

10th Maths Exercise 3.14 Samacheer Kalvi Question 2.
The basis of modern periodic law is:
(a) atomic number
(b) atomic mass
(c) isotopic mass
(d) number of neutrons
(a) atomic number

Exercise 3.14 Class 10 Samacheer Question 3.
_____ group contains the member of the halogen family.
(a) 17th
(b) 15th
(c) 18th
(d) 16th.
(a) 17th

10th Maths Exercise 3.14 Question 4.
……….is a relative periodic property.
(c) electron affinity
(d) electronegativity
(d) electronegativity

10th Maths Exercise 3.14 Solutions Question 5.
Chemical formula of rust is ____.
(a) FeO.xH2O
(b) FeO4.xH2O
(c) Fe2O3.xH2O
(d) FeO.
(c) Fe2O3.xH2O

10th Maths Exercise 3.14 Solution Question 6.
In the aluminothermic process the role of Al is ____.
(a) oxidizing agent
(b) reducing agent
(c) hydrogenating agent
(d) sulphurising agent.
(b) reducing agent

Maths Book For Class 10 Samacheer Kalvi Question 7.
The process of coating the surface of metal with a thin layer of zinc is called:
(a) painting
(b) thinning
(c) galvanization
(d) electroplating
(c) galvanization

10th Samacheer Maths Question 8.
Which of the following have inert gases 2 electrons in the outermost shell?
(a) He
(b) Ne
(c) Ar
(d) Kr.
(a) He

Samacheer Kalvi 10th Guide Maths Question 9.
Neon shows zero electron affinity due to:
(a) stable arrangement of neutrons
(b) stable configuration of electrons
(c) reduced size
(d) increased density
(b) stable configuration of electrons

10th Maths Solution Samacheer Kalvi Question 10.
____ is an important metal to form an amalgam.
(a) Ag
(b) Hg
(c) Mg
(d) Al.
(b) Hg

II. Fill in the blanks.

10th Standard Maths Algebra Question 1.
If the electronegativity difference between two bonded atoms in a molecule is greater than 1.7, the nature of bonding is ____.
Ionic bond.

10th Maths Samacheer Question 2.
____ is the longest period in the periodical table.
Sixth period.

Maths Book Class 10 Samacheer Kalvi Question 3.
______ forms the basis of modem periodic table.
Atomic number.

Question 4.
If the distance between two Cl atoms in Cl2 molecule is 1.98 Ã…, then the radius of the Cl atom is ____.
0.99 Ã….

Question 5.
Among the given species A, A+, and A, the smallest one in size is ______.
A+.

Question 6.
The scientist who propounded the modem periodic law is ______.
Henry Moseley.

Question 7.
Across the period, ionic radii ______ (increases,decreases)
Decreases.

Question 8.
_______ and ______ are called inner transition elements.
Lanthanides and Actinides.

Question 9.
The chief ore of Aluminium is ______.
Bauxite (Al2O3.2H2O).

Question 10.
The chemical name of rust is ______.
Hydrated ferric oxide.

III. Match the following.

Question 1.

#BBD0E0 »

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