A 10 g sample of an unknown metal is cooled from 100 °C to 21.6 °C in a calorimeter of 100 g of water. The temperature of the water rises from 20.0 °C to 21.6 °C. The specific heat of water is 4.184J/g°C. Calculate the specific heat of the unknown metal to determine the identity of the metal using the table below. Metal Specific Heat (J/g°C) Magnesium 1.047
Aluminum 0.900
Tin 0.226
Nickel 0.443
Show work here: Specific heat of unknown metal: The metal is (circle one): Magnesium Aluminum Tin Nickel

it is stable as it is in group 0 which have full outer shells of electrons

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.