7. Helium is an element that is very unreactive. This is one reason why helium is used to fill large air blimps that are sometimes used to televise
special athletic events. Look closely at this model of a helium atom. What
accounts for the fact that helium is an unreactive element? (LOOK AT THE PICTURE)(NO LINKS) 10 points

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

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