____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.
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes These data links are established over cable media such as wires or optic cables, or wireless media such as WiFi. Network computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as we