The pressure of a gas in a container is 152mm hg. this is equivalent to
0.2atm
2atm
0.3atm
0.4atm

no

explanation:

go away, people want answers, not to hook up

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.