Advertisements
Advertisements
प्रश्न
Write the number of unpaired electrons in Cr3+.
(Atomic number of Cr = 24)
Advertisements
उत्तर
The electronic configuration of
Cr = [Ar]3d54s1
Cr3+ = [Ar]3d3
Hence there are 3 unpaired electrons in Cr3+.
APPEARS IN
संबंधित प्रश्न
How is the variability in oxidation states of transition metals different from that of the non-transition metals? Illustrate with examples.
Use Hund’s rule to derive the electronic configuration of Ce3+ ion and calculate its magnetic moment on the basis of ‘spin-only’ formula.
Write the formula of an oxo-anion of Chromium (Cr) in which it shows the oxidation state equal to its group number
Explain why Mn2+ is more stable than Fe2+ towards oxidation to +3 state. (At. no. of Mn = 25, Fe = 26)
Transition elements form binary compounds with halogens. Which of the following elements will form \[\ce{MF3}\] type compounds?
(i) \[\ce{Cr}\]
(ii) \[\ce{Co}\]
(iii) \[\ce{Cu}\]
(iv) \[\ce{Ni}\]
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.
It has been observed that first ionization energy of 5 d series of transition elements are higher than that of 3d and 4d series, explain why?
The element with atomic number 53 belongs to
The basic character of transition metals monoxide follow the order.
Why are all copper halides known except that copper iodide?
