The scientist who did not contribute in the construction of periodic table ?

Related Mcqs:

The atoms of same element having same atomic number but different mass number are called____________________?

A. Isobars B. Isomers C. Isotopes D. Isotropes...

Melting points of VII-A group elements down the group ____________________?

A. Increase B. Decrease C. Remain constant D. No regular trend...

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...

The property which increases upto group IV-A then decreases on wards_______________?

A. Ionization energy B. Atomic radii C. Melting & boiling points D. Atomic volume...