Write the main pistulates of dalton's atomic theory.​

1) Elements consist of small particles  called atoms

2) All atoms of the same element are identical and different elements have      different types of atom.

3) Atoms can neither be created nor destroyed.

4) chemical compounds are formed when atoms of different elements join in simple ratios to form ‘compound atoms’

a

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.