All elements in Group 18 are classified as Noble Gases. As such, their outermost shell (or "orbital") is full of electrons making them highly stable. Only a handful of elements are capable of stealing their electrons.
In the periodic table, the elements are grouped according to their properties. Elements in a group has an equal number of valence electrons. So the elements in a group have most common chemical properties.
Each chemical element has specific chemical and physical properties.
Elements in a group have the same number of valence electrons and hence they have similar chemical and physical properties.
An element with an incomplete d subshell. Elements which have common cations with incomplete d subshells are also considered transition metals. Elements with incomplete f subshells are sometimes called "inner transition elements."
A family of elements (Or Chemical Family) is used to describe a group of related elements. For example, copper, silver, and gold all belong to the same chemical family. These 3 elements are often referred to as the coinage metals. These elements share several common properties.
The periodic table contain all chemical elements, placed in a rational order.
Chemicals in a column, or "group" have similar chemical properties.
The periodic table give the atomic numbers and the atomic weights of chemical elements.
Elements listed in the periodic table of elements are neutral; they do not have a charge. When they undergo chemical reactions they may become charged ions. There is no single most common charge for ions, but the most common are -1, -2, -3, +1, +2 and +3.
In the periodic table, the elements are grouped according to their properties. Elements in a group has an equal number of valence electrons. So the elements in a group have most common chemical properties.
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Each chemical element has specific chemical and physical properties.
Elements in same column have equal number of valence electrons. so they possess similar chemical properties.
The groups have equal number of valence electrons. The elements in same groups have same chemical properties.
Families in the Periodic Table of Elements have the same amount of valence electrons.
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