Group VIIIA elements periodicity

A column of the periodic table is called a family. Some families have special names. Group IA elements are called alkali metals, group IIA elements are called alkaline earth metals, group VIIA elements are called halogens, and group VIIIA elements are called the noble gases. The group B elements are called transition elements. Elements with atomic numbers from 58 to 71 are called lanthanides, and elements with atomic numbers from 90 to 103 are called actinides. Families have similar chemical and physical properties. For example, the alkali metals are soft metals at room temperature they are shiny, conduct... 

Noble gases (Section 1.1) The elements in group VIIIA of the periodic table (helium, neon, argon, krypton, xenon, radon). 

The Noble Gases (Inert Gas Elements) Periods 2 to 6, Group 18 (VIIIA)... 

Xenon is a noble gas. The term noble gas is used to describe the elements in Group 18 (VIIIA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to one another. Noble gas suggests a group of elements that is too far above other elements to react with them. The noble gases are also called the inert gases. That term has the same meaning. The noble gases react with other elements only under very unusual circumstances. 

Noble (rare) gases Elements of Group VIIIA in the periodic table. 

Noble gases Elements of periodic Group VIIIA also called rare gases formerly called inert gases. 

Because the elements on the far right edge of the periodic table, Group VIIIA, the noble gases, have electronic configurations that are uniquely stable, they are the only elements whose symbols... 

Rare gases are those elements in Group VIIIA of the periodic table helium, neon, argon, krypton, xenon, and radon. They are not necessarily rare, however, and are also called the inert or noble gases. Due to their electron configurations, helium, neon, and argon are extremely nonreactive, while others undergo some reactions. 

By this time you can see a pattern develop among the ground-state electron confign-rations of the atoms. This pattern explains the periodic table, which was briefly described in Section 2.5. Consider helium, neon, argon, and krypton, elements in Group VIIIA of the periodic table. Neon, argon, and krypton have conflgnrations in which a p subshell has just fllled. (Helium has a filled s subshell no p snbshell is possible.)... 

In general, for groups, when the table is read from left to right, the number of valence electrons in the outer shell of elements increases. For instance, lithium is located at the start of period 2 and has one electron in its outer shell and is found in group 1 (lA), and neon, located at the end of period 2 in group 18 (VIIIA), has eight electrons in its completed outer shell. 

The noble gases are found in group 18 (VIIIA), which according to some older versions of the periodic table is called group 0. These six elements (He, Ne, Ar, Kr, Xe, and Rn) are inert and have a zero oxidation state. They also have full outer valence shells and represent the end of each period of the periodic table. Helium is placed at the beginning of group 18 (VIIIA) because its outer valence shell is completed and it is inert. 

Not only is ununoctium expected to be a gas, but it should also be a nonmetal when discovered. It is located at the bottom of group 18 (VIIIA) in the periodic table and could be expected to have some of the characteristics of it neighbors above it in this group. When first and erroneously reported as being discovered, it was said to have 118 protons and 175 neutrons in its nucleus for an atomic mass number (amu) of 293, which would make it the heaviest of the yet-to-be discovered elements. 

Noble gas An element in Group 18 (VIIIA) of the periodic table. 

Chlorine is a very active element. It combines with all elements except the noble gases. The noble gases are the elements that make up Group 18 (VIIIA) of the periodic table. The reaction between chlorine and other elements can often be vigorous. For example, chlorine reacts explosively with hydrogen to form hydrogen chloride ... 

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