Among the following metals,the most dense is

The atomic radius of $Ag$ is closest to

Determine whether the following statements are True $(T)$ or False $(F)$:
$(a)$ The atomic radii of the elements of the second transition series $(4d)$ are larger than those of the first transition series $(3d)$.
$(b)$ $Cr^{+}$,$Mn^{2+}$,and $Fe^{3+}$ have the same electronic configuration.
$(c)$ $Cr^{+}$,$Mn^{2+}$,and $Fe^{3+}$ have the same $d^5$ electronic configuration.

Transition elements act as catalysts because....

Which metal is present in brass,bronze and German silver?

Due to covalent bonding,the transition metals are