Apatient comes in showing signs of severe depression. dr. jorgenson wants to order an eeg and hormone panel, while dr. frieden wants to set up a system of rewards and punishments, demonstrating the conflicting approaches of

beta decay is the answer

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you 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.