You have some metal shot ( small spheres about 5mm in diameter) and you want to identify the metal. You have a fask that is known to contain exactly...

You have some metal shot ( small spheres about 5mm in diameter) and you want to identify the metal. You have a fask that is known to contain exactly 100. Ml when filled with liquid to a mark in the flasks neck. When the fasld is filled with water at 20 degrees celcious the mass of flask and water I s 122.3 g. The water is emptied from the flask and 20 of the small shpere of metal are carefully placed in the flask. The 20 smallest sphere had a mass of 4203 g. Glask is again filled to the mark with water at 20 degrees celcious and wiighed. This time the mass is 159.9 g. What metal is in the spheres? What volume would 500 spheres occupy?