EASY
10th CBSE
IMPORTANT
Earn 100

State Newlands law of octaves.

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 2
What is the main necessity of classifying the elements?
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 3
State Mendeleev's periodic law. 
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 4

What is meant by a group and a period in the periodic table?

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 5
Write the names and symbols for three halogen atoms.
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 6
What is modern periodic law?
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 7
How many periods are there in the long form of the periodic table?
EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 8

What is the number of elements in the first four periods of the long form of the periodic table?

EASY
10th CBSE
IMPORTANT
MODERN'S ABC+ OF SCIENCE CHEMISTRY>Chapter 5 - Periodic Classification Of Elements>Revision Exercise>Q 9

Rewrite the following statement after corrections (if necessary) : 

Groups have elements with same number of electrons.