1. express each of the following measurements in the units indicated.
a. 2250 mg in grams
b. 59.3 kl in liters
2. use scientific notation to express each of the following measurements
in the units indicated.
a. 0.000 072 g in micrograms
b. 3.98 x 10^6m in kilometers

i think its 5049.

i hope this !

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.