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Elements are arranged in the periodic table based on their atomic number, which increases from left to right and top to bottom. Within this arrangement, elements are categorized into groups or families with similar chemical properties. These properties largely depend on the number of electrons in the group shell. For instance, oxygen, sulfur, and selenium belong to the same group, known as oxygen group or chalcogens, because they all have six electrons in their outermost shell.

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Tunneling also plays a crucial role in technologies like IPv6 over IPv4 tunneling. In scenarios where an IPv6 network needs to communicate with an IPv4 network, a tunneling tool is used to encapsulate IPv6 packets within IPv4 packets, allowing them to pass through the IPv4 network In scenarios where an IPv6 network needs to communicate with an IPv4 network, a tunneling tool is used to encapsulate IPv6 packets within IPv4 packets, allowing them to pass through the IPv4 network In scenarios where an IPv6 network needs to communicate with an IPv4 network, a tunneling tool is used to encapsulate IPv6 packets within IPv4 packets, allowing them to pass through the IPv4 network In scenarios where an IPv6 network needs to communicate with an IPv4 network, a tunneling tool is used to encapsulate IPv6 packets within IPv4 packets, allowing them to pass through the IPv4 networktunneling tool.

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