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Question:

What is the Electrical Conductivity Trend Across the 3rd Period?

I know that Aluminium is the best conductorSi being a semi-conductors and others being non-conductorsso shouldn't the trend be Nagt;Mggt;Al? with Si being a worse conductor than Na?Because why is Aluminium the best electrical conductor? because if it has the highest nuclear charge then wouldn't that mean the sea of electrons will be closer to the nucleus and therefore the flow of electrons would be greatly inhibited causing it to be a worse electrical conductor than sodium and magnesium?

Answer:

Insulation is designed to keep out the heat or cold, whether it be summer or winterIt is unnecessary to insulate interior walls as it won't help with keeping heat/cold out and it won't help with sound deadeningIf you did insulate an interior wall, it would not hurt anything, even stabilizing temperaturesTemperature could still stabilize through the door, especially when openWe never insulate interior walls, only party walls when it comes to multi-family dwellings.
What do you hope to gain by doing this? If it's an interior wall it isn't going to help with your heatingIf you are looking at sound deadening, then use something made for that purpose.
Interior insolation is sometimes used to reduce the sound tranfer through walls and to improve the ability to control temperatures in multiple zonesIt is not needed in most cases.
Insulating the interior walls will cut down on the amount of noise that is transmitted between rooms in your houseGreat idea if you have kidsYou can also insulate the floors if you have a 2 story and or a basement.
Al can give up THREE electrons to the Sea

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