(a) a 3+ ion with [He]2s22p6symbolunpaired electrons(b) a 2+ ion with [Ar]3d9symbolunpaired electrons please help
Insulation can failA brick wall is better because it doesn't failHOWEVER, it's not as good at insulating as opposed to a stick framed homeBut most brick homes are built with cinder block to form the main structureOn the outside is another layer of brick, but with an air gapThat way when the wall is exposed to the suns heat the interior wall doesn't get hotSame with coldThen on the interior wall is wood firing (not sure of the exact terminology, I'm an electrical engineer, not a home construction expert)There's this firing (strips of wood) to which sheet rock is attachedThat makes a second thermal breakThat's exactly how my 1964 home is builtI don't experience any hot or cold walls due to temperature extremes outsideAnd there is no insulationNoneNadaZilchZeroWith a properly insulated attic, energy efficient windows and doors, air leaks sealed, my winter home heating cost is around $75 a month, give or take winters extremes and mildsDaytime average highs are around 35 and night time low averages are around 20 degrees FWhen a cold snap hits temps can drop at night easily into single digits, and sometimes into the negative numbersHeating bills go up when temperatures go way downBut that's physics 101Hope this helped'')
Wood is a better option and this is why so many old/historic houses in the UK were lined with wood panelling and still are today, much of it very attractiveIf there is an air gap between the panels and the masonry so much the better because still air is a very good insulatorIt will work to some extent in summer too provided folk do not throw open all the windows so that night coolness is retained during the dayI.e., open the windows at night and close them at dawn.
Have a look at the RAT TRAP bond brick workIt creates a cavity thus insulates the walls better than standard brick workYou can always dry line the inside of the wall after if need be as well
aAl, 3 unpaired electrons, AKA 3 valence electrons, in atomic aluminumbCu, 1 unpaired electron in the 4s in atomic copperCu is one of the exceptions to the Aufbau principle and has the electron configuration [Ar]4s1, 3d10, since one electron is transferred from the 4s to the 3d to make it completely filled, and more stableWhen copper loses two electrons one comes from the 4s and one comes from the 3d leaving nine electrons in the 3d.
IT depends in which location you are but wood will be a best choice there.You can use motorized shades to control the temperature in all seasons.Motorized shades can be connected to or integrated into home automation systemsThis allows the user to control all the home systems from one interface – shades, lights, temperature, audio, video, security, and even irrigation.
