Which of the following properties can help identify a mineral in the field?
A the ability of its atoms to bond
B its reflection of light
Cits specific gravity
D the pressure needed to fom it

the increase of protons   hope this

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.