MEDIUM
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On what basis Newland proposed his classification?

Important Questions on The Periodic Table

MEDIUM
Write the name of the scientist who has given a triad law for the classification of elements. Explain the law of triad.
EASY
Write Newlands Law of 'Octaves' for classification of elements.
MEDIUM
Write the name of the scientist who has given the octave rule for the classification of elements. Explain the octave rule.
MEDIUM
The modern periodic table has been evolved through the early attempts of Dobereiner, Newland and Mendeleev. List one advantage and one limitation of all the three attempts.
EASY
What were the criteria used by Mendeleev in creating his Periodic Table?
MEDIUM
State the limitations of Newlands' Law of Octaves?
HARD
What is Newlands’ Law of Octaves? What were the limitations of Newlands’ Law of Octaves? 
 
MEDIUM

Chlorine, Bromine, and Iodine form a Dobereiner's Triad. If the approximate atomic mass of Chlorine is 35 and that of Iodine is 127:

Find the atomic mass of Bromine.

MEDIUM
What is Newland's law of octaves? Why was this law rejected?
EASY
The reasons for rejecting the law of octaves is:
EASY
According to the Newlands' law of octaves, C should resemble in its properties with
HARD

Elements have been arranged in the following sequence on the basis of their increasing atomic masses.

F, Na, Mg, Al, Si, P, S, CI, Ar, K

(a) Pick two sets of elements that have similar properties.
(b) The given sequence represents what law of classification of elements?

EASY
Upto which element, the law of octaves was found to be applicable?
MEDIUM
A and B are the two elements having similar properties and obeying Newland's law of octaves. How many elements are there in between A and B?
MEDIUM
What were the limitations of Newlands’ Law of Octaves?