The d- and f- B...

Ammonium dichromate is used in fire works. The green colored powder blow in the air is:

More number of oxidation states are exhibited by the actinoids than by lanthanoids. The main reason for this is:

The colorless species is:

Titanium shows magnetic moment of $$1.73BM$$; then find out its oxidation state:

In $${ Cr }_{ 2 }{ O }_{ 7 }^{ 2- }$$ every $$Cr$$ is linked to:

Which pair of compounds is expected to show similar color in aqueous medium?

The compound of vanadium has magnetic moment of $$1.73B$$. The vanadium chloride has the formula:

The "Spin-only" magnetic moment [in units of Bohr magneton,$$({\mu}_{B})]$$ of $${Ni}^{2+}$$ in aqueous solution would be (At. no. $$Ni=28$$):

Which of the following elements involves gradual filling of $$5f$$-level?

Among the following metals, interatomic forces are probably the weakest in :