Which of the following is an advantage of a fixed tube sheet type of shell-and-tube heat exchanger? Better able to deal with thermal expansion
o can handle larger temperature changes
O Low cost
Reduces fouling rates

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.

i think tornado but not 100%