a tank full of xenon gas has a volume of 696 l. when the gas is transferred to a new tank the pressure is measure at 3.52 torr and the volume is 423 l. what was the original pressure?
boyle's law p1v1=p2v2

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.