For the quintessence of classical philosophy, see Aether (classical element). Boron is a chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust.
The weight of a polo shirt depends on the size and fabric. The  average weight for a men's short-sleeved polo shirt in size large  is about 8 ounces.1 person found this useful.ow much does a medium sized t-shirt weigh?   On average: Small: 6 oz. Medium: 6.5 oz Large: 7 oz X-Large 7.50 2X-Large 8.75 3X-Large 9.50 But it can vary depending on material.
My understanding is weight will vary with the bond rating of the paper. Standard is 20# bond so one ream would weigh 5# or a box of 10 would weigh 50#, 24# bond would weigh 60 â¦ #/box.  : Citing how things work -  : .... 500 sheets of 20 bond paper with a size of 17 by 22 has a weight of 20 pounds.The manufacturer would cut a sheet that big into four letter-size sheets, so a 500-sheet ream of 20-pound bond paper weighs 5 pounds.+ 46 others found this useful. : Citing how things work -  : .... 500 sheets of 20 bond paper with a size of 17 by 22 has a weight of 20 pounds. The manufacturer would cut a sheet that big into four letter-size sheets, so a 500-sheet ream of 20-pound bond paper weighs 5 pounds. + 46 others found this useful.