Metre scales are made-up of alloy
invar
stainless steel
elektron
magnalium
The second and third rows of transition elements resemble each other much more than they resemble the first row. Explain why ?
The correct order of decreasing third ionisation enthalpy of $Ti, \,V,\, Cr,\, Mn$ is
Which of the following order is not correct
Out of $\mathrm{Cu}_{2} \mathrm{Cl}_{2}$ and $\mathrm{CuCl}_{2}$, which is more stable and why ?
Mention the type of compounds formed when small atoms like $H$, $C$ and $N$ get trapped inside the crystal lattice of transition metals. Also give physical and chemical characteristics of these compounds.