Periodic Trends in the Properties of Elements

Example for strongest reducing agent amongst all the hydrides of group $15$

Identify the element that has $+3$ as most popular oxidation state and belongs to d-block.

Density of elements across a period :

Which of the following element have maximum atomic volume ?

In the periodic table from left to right in a period the atomic volume:

The correct order of boiling point of halogens is
 

Amongst the following, the most basic oxides are

Choose the correct statement from the following:

(1) Beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal.

(2) $\mathrm{BeO}$ is basic oxide.

(3) Beryllium exhibits coordination number more than four.

(4) Beryllium oxide is purely acidic in nature.

The covalencies of boron and aluminium in ${\left[{\mathrm{BF}}_4\right]}^{-1}$ and ${\left[\mathrm{Al}{\left({\mathrm{H}}_{2}0\right)}_5\mathrm{Cl}\right]}^{+2}$ are, respectively _________

The oxidation states of $\mathrm{Rb}$ in ${\mathrm{RbO}}_2$ and $\mathrm{Na}$ in ${\mathrm{Na}}_2{\mathrm{O}}_2$ are, respectively ________

Lithium and beryllium have diagonal relationship respectively with

The number of elements among $\mathrm{O}, \mathrm{Cl}, \mathrm{F}, \mathrm{N}, \mathrm{P}, \mathrm{Sn}, \mathrm{Ti}, \mathrm{K}, \mathrm{Sc}$ which show more than one non-zero oxidation state is

The oxidation state of central atom in the anion of compound ${\mathrm{NaH}}_2{\mathrm{PO}}_2$ will be :-

What will happen when we go from left to right in a period ?

Which of the following pair is amphoteric oxides?

Incorrect statement about the element, If the element has atomic mass 40 and electronic configuration is 2, 8, 8, 2.

Out of the given salts, which is most soluble in water?

Which of the following hydrides is an electron precise molecular hydride?

Which element is the diagonal partner of element $\mathrm{B}$?

Identify the neutral oxide among the following.