For a p-block element,its 3d, 3s, 3p and 4s o | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The electronic configuration of the element is given by filling the orbitals in the order: $1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^{10}, 4p^{1-6}$

Vedclass · Accepted Answer

$31 - 36$

Vedclass · Answer

(C) The electronic configuration of the element is given by filling the orbitals in the order: $1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^{10}, 4p^{1-6}$.Summing the electrons: $2+2+6+2+6+2+10 = 30$ electrons are filled before the $4p$ orbital.For a $p$-block element,the differentiating electron enters the $4p$ orbital.If the $4p$ orbital has $1$ electron,the atomic number is $30 + 1 = 31$ (Gallium,$Ga$).If the $4p$ orbital has $6$ electrons,the atomic number is $30 + 6 = 36$ (Krypton,$Kr$).Thus,the range of atomic numbers for this configuration is $31 - 36$.

For a $p$-block element,its $3d, 3s, 3p$ and $4s$ orbitals are completely filled and the differentiating electron goes to the $4p$ orbital. The element should have its atomic number in the range:

Similar Questions

Which of the following statements about $BF_4^{-}$ and $AlF_6^{3-}$ are correct?
$(i)$ $B$ and $Al$ differ in their oxidation states.
$(ii)$ $B$ and $Al$ differ in their covalency.
$(iii)$ $B$ obeys the octet rule.
$(iv)$ $B$ and $Al$ are in diagonal relationship.

Aluminium reacts with caustic soda to form

Consider the following halides: $(1) \; BCl_3$,$(2) \; AlCl_3$,$(3) \; GaCl_3$,$(4) \; InCl_3$. What is the decreasing order of their Lewis acid strength?

The correct statement is:

Hybridisation of boron in diborane is

Vedclass Test Series

Exam Paper Generator

Online Exam Module