PRACTICE QUESTIONS SET
Sourabh Monga Chemistry Solutions for Exercise - PRACTICE QUESTIONS SET
Simple step-by-step solutions to PRACTICE QUESTIONS SET questions of Periodic Classification of Elements from New Millenium Science - Chemistry Class X. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from PRACTICE QUESTIONS SET with Hints & Solutions
Which property of elements was used by Mendeleev to classify the elements?
What name was given to the then undiscovered element 'Germanium'? (Eka-silicon/ Eka-boron)
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses.
Where Mendeleev placed the noble gases, after their discovery, in his periodic table? Was the original order of elements disturbed?
P, Q and R are the elements of a Dobereiner's triad. What should be the atomic mass of Q, if the atomic mass of P is and that of R is ?.
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?
Write two anomalies of Mendeleev's classification of elements.
How do the properties of eka-aluminium predicted by Mendeleev resemble with that of Gallium discovered later?
