____17. Which group in the Periodic Table contains elements that are all gases at STP? A) 11 C) 12 B) 17 D) 18 ____18. The properties of silicon are characteristics of A) a metal, only B) a nonmetal, only C) both a metal and a nonmetal D) neither a metal nor a nonmetal ____19. When a calcium atom loses its valence electrons, the
The Internet is not synonymous with World Wide Web. The Internet is a massive network of networks, a networking infrastructure. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet.he Internet is a massive network of networks, a networking infrastructure. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet.
Computer network. A computer network or data network is a telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.