2. What does a car weigh if its tires cover an area of 4 square meters and each tire exerts a pressure of 1000 N/m2 on the ground?

Copper, silver, aluminum, cobalt, chromium, mercury 

It has to be b i hope this

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts