Question
Write the general outer electronic configuration of s-, p-, d- and f- block elements.

Answer

  1. s-Block elements: $\mathrm{ns}^{1-2}$ where $\mathrm{n}=2-7$.
  2. p-Block elements: $n s^2 n p^{1-6}$ where $n=2-6$.
  3. d-Block elements: $(n-1) d^{1-10} n s^{0-2}$ where $n=4-7$.
  4. f-Block elements: $(n-2) f^{0-14}(n-1) d^{0-1} n s^2$ where $n=6-7$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

What is the effect of the following processes on the bond order in $N^-$, and $O_2$?
  1. $N_2 → N^+_2 + e^–$
  2. $O_2 → O^+_2 + e^–$
Explain why alkyl groups act as electron donors when attached to a $\pi$ system.
Write the electronic configurations of the following ions:
Attempt any five of the following:
1. If $Qc < Kc$, when we continuously remove the product, what would be the direction of the reaction?
2. Explain the reason for the extraordinary stability of benzene in spite of the presence of three double bonds in it.
3. What effect does branching of an alkene chain has on its boiling point?
4. Write the IUPAC name:
Image
5. How will you demonstrate that double bonds of benzene are somewhat different from that of olefines?
6. Why do alkynes not show geometrical isomerism?
7. Write an IUPAC name:
Image
Which elements have the following electronic configurations? (Use only the periodic table.)
i. $1 s^2, 2 s^2, 2 p^5$
ii. $[\operatorname{Ar}] 4 s^2, 3 d^{10}, 4 p ^1$
iii. $[ Xe ] 6 s^2$
iv. $[ Xe ] 6 s^2, 5 d^1, 4 f ^7$
v. $[ Ar ] 4 s^1, 3 d^{10}$ (exception to rules)
What do you meant by oxidation number or oxidation state? Give the rules to calculate the oxidation number.
Calculate the total pressure in a mixture of $8$ g of dioxygen and $4$ g of dihydrogen confined in a vessel of $1 dm ^3$ at $27^{\circ} C . R =$ 0.083 bar dm3 K
Define atomic weight, molecular weight and equivalent weight and explain them.
Describe the properties of covalent compounds.
The reaction of cyanamide, $NH _2 CN ( s )$, with dioxygen was carried out in a bomb calorimeter, and $\Delta U$ was found to be $-742.7 kJ mol ^{-1}$ at 298 K . Calculate enthalpy change for the reaction at 298 K .
$NH_2 CN(g)+\frac{3}{2} O_2(g) \longrightarrow N_2(g)+CO_2(g)+H_2 O(l)$