What is precision? the degree of accuracy in a measurement

Precision refers to how close two or more measurements are to each other, regardless whether those measurements are accurate or not.

Accuracy refers to how closely the measured value of a quantity corresponds to its “true” value.

Explanation:

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-love shrooms

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.