The student kicks the soccer ball three times and I shouldn’t record the distance the amount of time the ball travels and the average speed in the table shown below soccer ball girl how many seconds did it take for the ball to travel 30 m during kick three

D it’s is 2.0 s

i think..

Explanation:

i do not get it   at all

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.