EASY
10th CBSE
IMPORTANT
Earn 100

What is periodicity?

Important Questions on Periodic Classification Of Elements

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 18
Out of Li, Na and K, which has the largest atomic size?
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 19
How were the positions of cobalt and nickel resolved in the modern periodic table?
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10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 1

Define modern periodic law. How many groups and periods are there in the long form of the periodic table?

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10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 2
What is meant by Dobereiner’s triads? Give one example.
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 3
What is meant by the valency of an element? Give the valency of Mg and Al.
MEDIUM
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 4
Define atomic radius. Which of the two: B or C has smaller atomic radius?
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 5

Give example of the following:

Fourth element of the second period.

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 5

Give example of the following:

Third element of group 13.