EASY
10th Chhattisgarh Board
IMPORTANT
Earn 100

According to the modern periodic table the properties of an element are a periodic function of what?

Important Questions on Periodic Classification of Elements

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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 2

What will be the number of elements in the second period?

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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 3

Can you fix the position of different isotopes of an element in the modern periodic table? Explain.

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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 4
How have the positions of argon and potassium been determined in the modern periodic table?
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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 5
If the atomic number of three elements X, Y and Z are 6, 10 and 18 respectively then, Which of the two elements belong to the same group?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 5
If the atomic number of three elements X, Y and Z are 6, 10 and 18 respectively then, Which of the two elements belong to the same period?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 1
How will you calculate the valency of an element when its electronic configuration is given?
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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Questions>Q 2
How does a valency change when we move down the group?
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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 4 - Periodic Classification of Elements>Exercise>Q 1

The table shows the atomic radii of the elements of group 17. Arrange them in increasing order and answer the following questions.

Which elements have the largest and the smallest atoms?

Elements of group 17 Atomic radii (pm)
Br 114
F 64
I 133
Cl 99
At 144