Keeping in view the size of atom which order is correct one ?

Related Mcqs:

Elements in the same vertical group of the periodic table have same_______________?

A. Number of valence electrons B. Atomic number C. Atomic mass D. Atomic volume...

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

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

Which of the following possesses maximum hydration energy ?

A. Na+ B. K+ C. Mg+2 D. Ca+2...

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...