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Groups are the elements having the same outer electron arrangement the outer electrons are also called the valence electrons. Most element families are a single column of the periodic table although the transition elements consist of several columns plus the elements located below the main body of the table.

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Group 2 iia 2 valence electrons.

Periodic table groups and families. The most common way the periodic table is classified by metals nonmetals and metalloids. In the periodic table of elements there are seven horizontal rows of elements called periods. Halogens form ionic bonds with all kinds of elements.

They are highly reactive and do not occur freely in nature. Another common method of categorization recognizes nine element families. The horizontal rows on the periodic table are called periods.

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. Groups 3 12 d and f block metals have 2 valence electrons. Alkali metals group 1 of the periodic table are the alkali metals.

Note that this element family includes nonmetals semimetals and metals. One common substance. The halogen family consists of fluorine chlorine bromine iodine and astatine.

An example of an element family is the nitrogen group or pnictogens. In the periodic table of the elements each numbered column is a group. Are located in the second column from the right side of the periodic table group 17.

A group is a vertical column in the periodic table of elements. All the members of a family of elements have the same number of valence electrons and similar chemical properties. Boron group or earth metals.

The periodic table can be divided into nine families of elements each having similar properties. Group 1 ia 1 valence electron. The vertical columns of elements are called groups or families.

In chemistry a group also known as a family is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table and the f block columns between groups 3 and 4 are not numbered. They all have seven valence electrons which make them highly reactive for covalent bonds.

They are considered the most important method in classifying the different elements.