Band theory predicts that magnesium is an insulator. However, in practice it acts as a conductor due to

Question

Band theory predicts that magnesium is an insulator. However, in practice it acts as a conductor due to (A) presence of filled 3s - orbital (B) overlap of filled 2p and filed 3s- orbital (C) overlap of filled 3s and empty 3p-orbital (D) presence of unfilled 3p -orbital

Tardigrade Admin · Accepted Answer

The electronic configuration of Mg is 1s2,2s2,2p6,3s2,3p0 In it 3s - orbital is completely filed and 3p-orbital is empty. There is very small energy difference between 3s and 3p - orbitals. Thus, they overlap and make the Mg a conductor. <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-ibmtceuv6yue.png" /> Band model of Mg

Q. Band theory predicts that magnesium is an insulator. However, in practice it acts as a conductor due to

presence of filled 3s - orbital

overlap of filled 2p and filed 3s- orbital

overlap of filled 3s and empty 3p-orbital

presence of unfilled 3p -orbital

The electronic configuration of Mg is

$1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{0}$

In it 3s - orbital is completely filed and 3p-orbital is empty. There is very small energy difference between 3s and 3p - orbitals. Thus, they overlap and make the Mg a conductor.

Band model of Mg

Q. Band theory predicts that magnesium is an insulator. However, in practice it acts as a conductor due to

presence of filled 3s - orbital

overlap of filled 2p and filed 3s- orbital

overlap of filled 3s and empty 3p-orbital

presence of unfilled 3p -orbital

The electronic configuration of Mg is 1s2,2s2,2p6,3s2,3p0 In it 3s - orbital is completely filed and 3p-orbital is empty. There is very small energy difference between 3s and 3p - orbitals. Thus, they overlap and make the Mg a conductor. Band model of Mg

The electronic configuration of Mg is

$1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{0}$

In it 3s - orbital is completely filed and 3p-orbital is empty. There is very small energy difference between 3s and 3p - orbitals. Thus, they overlap and make the Mg a conductor.

Band model of Mg