give the symbol of the element with each of the following electron configurationsa) 1s?2s?2p?b) 1s?2s?2p?3s?3p?c) [Ne] 3s?3p?d) [Ar] 4s?3d?
I'm waiting for the photo-voltaic paints or if the roof needs re-shingling, the photo-voltaic shingles.
Not in my climate And hopefully whoever is painting all these roofs now is at least using eco-friendly paint.
My roof is already covered in solar panels, but the tile underneath is a light color.
mine is already whitethis helps to lower the cooling bill on very hot sunny daysif every one did this there may be a larger amount of solar heat radiated back into space like the snow does in the winteri don't think using aluminum foil would be cost effective.
a) oxygen b)argon c) aluminium d)there's no element with e.c [Ar] 4s?3d? but it is [Ar] 4s?3d5 and it is Cr
