The metalloids fall in between, near. the zigzag line. This trend isnât a coincidence. The number of valence electrons, or electrons in the. outer shell, determines how an element acts. For example, metals have few electrons in their outer shell. This causes them to possess metallic properties such as, conductivity & reactivity. Conversely, the. nonmetals on the right of the periodic table have almost complete sets of electrons in their outer level.
While relations between Cuba & the United States are improving, itâs still technically illegal to travel there. Hereâs how you can travel to Cuba as an American anyway. UPDATE: As of August 2016, there are now regular flights to Cuba from the United States from certain airlines/cities. Keep reading for more information.
The Cuban Tourist Card allows you to stay in Cuba for 30 days. If you plan to stay longer than 30 days in Cuba you can extend your Cuban Tourist Card at Immigration in Cuba for another 30 days at a cost of 25 CUC. The maximum length of stay in Cuba with a Tourist Card is 60 days.