Which discovery caused a revision in the periodic law as stated by Mendeleev ?

Periodic Classification 21/08/2021

A. Location of nucleus by Rutherford
B. Atomic number by Moseley
C. X-rays by Roentgen
D. Natural radioactivity by Henry Bacquerel.

Related Mcqs:

    The atomic radii decreases by increasing atomic number in________________?
    A. Alkali metal B. Alkaline earth metal C. Elements from Li to Ne D. Halogens...
    Which of the following possesses maximum hydration energy ?
    A. Na+ B. K+ C. Mg+2 D. Ca+2...
    True increasing order of acidity of the oxides of Mn is_________________?
    A. MnO < MnO2 < Mn2O7 B. Mn2O7 > MnO2 > MnO C. MnO2 > MnO > Mn2O7 D. MnO2 > Mn2O7 > MnO...
    In which of the following pairs are elements belonging to the same group ?
    A. Boron & Beryllium B. Nitrogen & Phosphorous C. Magnesium & Aluminium D. Gallium & Helium...
    Amphoteric exides are those which possess ____________ properties?
    A. Acidic B. Basic C. Acidic and basic D. Neutral and acidic...

Leave a Reply

Your email address will not be published. Required fields are marked *