Which statement belongs to daltons atomic theory? a. atoms have a massive, positivity charged center

b. atoms cannot be created or destroyed

c. atoms can be broken down into smaller pieces

d. electrons are located in energy levels outside of the nucleus

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explanation:

because it is

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.