Advertisements
Advertisements
Question
Account for the following:
Zn, Cd and Hg are soft metals.
Advertisements
Solution
Zn, Cd and Hg are soft metals due to absence of any unpaired electrons resulting weak metal-metal bonding.
APPEARS IN
RELATED QUESTIONS
What are lanthanoids?
What is lanthanoid contraction? Write the.............
The f-block elements are known as ____________.
Gadolinium belongs to 4f series. It’s atomic number is 64. Which of the following is the correct electronic configuration of gadolinium?
Although Zr belongs to 4d and Hf belongs to 5d transition series but it is quite difficult to separate them. Why?
Match the statements given in Column I with the oxidation states given in Column II.
| Column I | Column II | |
| (i) | Oxidation state of Mn in MnO2 is | (a) + 2 |
| (ii) | Most stable oxidation state of Mn is | (b) + 3 |
| (iii) | Most stable oxidation state of | (c) + 4 |
| Mn in oxides is | (d) + 5 | |
| (iv) | Characteristic oxidation state of lanthanoids is | (e) + 7 |
On the basis of Lanthanoid contraction, explain the following:
Nature of bonding in \[\ce{La2O3}\] and \[\ce{Lu2O3}\] .
Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of ______.
Why is Mn2+ ion more stable than Fe2+ ion?
(Atomic numbers of Mn = 25 and Fe = 26)
The pair of lanthanoid ions which are diamagnetic is:
