A vacuum flask keeps its contents warmer or cooler than the surrounding environment for a length of time. It consists of two flasks, one inside the other, that connect at the neck. The space between the two flasks is completely empty of air. Why does the design of the vacuum flask minimize heat transfer by conduction

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

idk

explanation:

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