They have similar (more or less) chemical properties.
chemistry
Elements in the same column of the periodic table are called "groups" or "families". They share similar chemical properties due to having the same number of valence electrons, which influences their reactivity and behavior.
The periodic table itself will not tell you if an element is a gas or not. All elements have a melting point and a boiling point. For this information you need to look at a table of the PROPERTIES of the elements. However, all the elements in column 18 and many of the elements towards the top of column 17 and to some extent 16 are gasses at room temperature, as are all the elements in row 1.
A column in the periodic table is called a group or a family. Elements within the same group share similar chemical properties due to having the same number of valence electrons. There are 18 groups in the periodic table.
Not all the elements in the periodic table are renewable.
In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.
chemistry
A group in the periodic table is a column of elements that share similar chemical properties due to having the same number of electrons in their outer energy level. Groups are vertical columns and are numbered from 1 to 18.
A family of elements is a group (column) of the Periodic Table. The family of an element is the column it is in in the Periodic Table. In a family of elements, they all have similar properties. An Example of a Family of Elements;The Alkali Metals - Group 1LithiumSodiumPotassiumRubidiumCaesiumFrancium
they all have the same electrons.
Any and all elements not found in column 17 of the periodic table.
Elements in the same column of the periodic table are called "groups" or "families". They share similar chemical properties due to having the same number of valence electrons, which influences their reactivity and behavior.
A family is a vertical column in the periodic table. Elements in a family all share similar characteristics. There are 18 families in the periodic table.
The periodic table itself will not tell you if an element is a gas or not. All elements have a melting point and a boiling point. For this information you need to look at a table of the PROPERTIES of the elements. However, all the elements in column 18 and many of the elements towards the top of column 17 and to some extent 16 are gasses at room temperature, as are all the elements in row 1.
This is probably a reference to the periodic table of the elements, which has columns. All the elements in a given column have the same configuration of valance electrons. There is a column of noble gases, a column of halogens, etc.
These elements - fluorine, chlorine, bromine, and iodine - are part of the same column of the periodic table called the halogens. Halogens are highly reactive nonmetal elements that share similar chemical properties due to their outer electron configuration.
A column in the periodic table is called a group or a family. Elements within the same group share similar chemical properties due to having the same number of valence electrons. There are 18 groups in the periodic table.