You are the commander of a space station and your chief of security tells
you that sensors have just detected an
explosion
How long will it be before you
hear the sound of the
explosion?

m=9

step-by-step explanation:

what does the table look like

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.