Why does Si have such a greater electron affinity than aluminum?
do a cool shower don't do hot hot makes it go into the pores of the skin cool shower
lons sleeves, scarves, gloves, hats are the order of the daytake a bath, shower off afterwards.
Long sleeved shirts and long pants are not out of the questionLight, breathable fabric while working with insulation is perfectly FASHIONABLE, even in MiamiSweat a little or suffer a lot, your choiceps.shower with soap and use a washclothMaybe some lotion on the exposed area afterwardGood luck.
The insulation is not really in your poresIt has made tiny cuts on your skinThat is what you are feeling after you shower, not the insulation itselfThe only thing that works is prevention so find some long sleeves and gloves you can wear or There are protective creams you can put on before you start to work that might help a little but they are made more for liquids like paints, oils and suchAnd they make me sweat more than light cotton clothesBert
E.A is the energy released when an electron is added to an atom, as you may know, E.A is closely related to atom radius, the larger the radius the lower the E.A and the smaller the radius the larger the E.A this is because the more electrons located in the valence shell the more repulsion between electrons and therefore more energy is required to add an electron and therefore more energy is releasedthere are many reasons why the most basic reason would be that generally the trend is E.A increases towards the right across the period towards the noble gases and decreases down a group, Si therefore has a greater E.A than Aluminum More in depth, we must look at the electron configuration of Aluminum vsSilicon, aluminum has 13 electrons, silicon has 14, aluminum has 1 electrons in its 3p orbital where as Silicon has 2, because of hund's rule we must fill the subshells (p and d.) with one electron in each different angular momentum level (M small l) before adding the second electrons with opposite spin (Ms) therefore silicon has two electrons in its valence shell one placed in the 3px and one in the 3py (or z does not matter)so if we look at the 3p subshell being the outer most valence shell aluminum would have one electron in its valence shell and silicon would have 2, however because the 3p can only hold 6 electrons and only 3 electrons with the same spin, there would be significantly greater repulsion between 3 electrons occupying the 3 angular momentum levels with the same spin as compared to 2 electrons, this is why Si has a greater electron affinity than aluminum.
