What mass of calcium metal contains the same number of atoms as 12.16 g of magnesium

20.268 grams of calcium metal contains the same number of atoms as 12.16 g of magnesium.

Explanation:

Atomic mass of magnesium= 24 g/mol

Mass of magnesium given = 12.16 g

Moles of magnesium=

1 mol = atoms/ molecules, ions

Number of atoms of magnesium in 0.5067 moles of magnesium:

Calcium metal contains the same number of atoms:

Moles of calcium = n

n = 0.5067 mol

Atomic mass of calcium = 40 g/mol

Mass of 0.5067 moles of calcium:

0.5067 mol × 40 g/mol = 20.268 g

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.

the answer is symmetrical : )