Density is a measure of what? 1) how much mass is in a substance2) how much volume is in a substance3) how much mass per unit of volume is in a substance

How much mass per unit of volume is in a substance

Explanation:

Density is defined as the mass contained per unit volume.

It is fixed for a given compound at a fixed temperature.

Example: Mass of bromine = 586 grams

Volume of bromine = 188 ml

Putting in the values we get:

Thus density of bromine will be 3.12 g/ml and it is mass per unit of volume in a substance.

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explanation:

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.