Periodic Number

An element refers to a substance made of atoms of the same kind. All the atoms in a particular element bear the same atomic number. Elements cannot be broken further into smaller substances using chemical reactions. However, they can only be transformed into other elements by nuclear procedures. The atoms in an element contain the same number of protons, but the number of neutrons varies. When the number of protons in an atom is changed, then the element changes.

Properties of Elements

Every known element has a name and a number, which are listed in the periodic table. The periodic table outlines each element's electron configuration, the atomic number of the element, and the chemical properties of the element. The atomic number refers to the number of protons found in the atom of an element. Elements can be categorized into three major groups that include metals, nonmetals, and metalloids. The elements found on the left side of the periodic table are typically metals. While the elements on the right side of the periodic table are non-metals. Some elements like hydrogen and sodium are popular while others like dysprosium remain unknown because they are rarely used. Elements like copper, carbon, and silver have been in existence for thousands of years.

Current Number of Elements

The periodic table contains a total of 118 elements. Four of these were included on the list in 2016. These are Nihonium (113), Moskovi (115), Tennessine (117), and Oganesson (118). The first 98 elements listed in the periodic table occur naturally while the rest can only be found in nuclear accelerators and laboratories. Thirty-two of the 98 elements are in their pure form. The rest exist as compounds. Eighty of the natural elements are stable, meaning that they cannot be subjected to radioactive decay. Ten of the 98 elements only exist in trace amounts. Typically, all the elements of the periodic table with a higher atomic number than lead are unstable, thus subject to radioactive decay. Although several of the discovered elements exist naturally, only a few of these exist in their native form. Among the few are noble gases that do not form compounds easily, as well as metals like copper, silver, and gold. Non-metals that fall into this category include nitrogen, oxygen, and carbon. Elements that do not exist in their native form include alkali and alkaline metals as well as rare earth elements.

Rare vs Native Elements

Rare elements are obtained through the radioactive decay of some common elements. For instance, francium results from decayed actinium. A number of the elements listed in the periodic table recently may have been produced through the decay of unknown elements that have been in existence for a long time. Native elements, on the other hand, are naturally occurring elements in an uncombined form. However, only a few native elements are found in compound form.

The Future of the Periodic Table

Six new elements were discovered between 2012 and 2016, filling the gaps that were remaining at the bottom of the periodic table. The year 2019 marked the 150th year since the table was established. As the chemical properties of known elements continue to change, new discoveries of elements continue to occur. Most of the periodic table changes will result from human-made elements made by scientists using high energy accelerators. However, unlike natural elements that can be handled, these synthetic elements are likely to be unstable, thus decaying quickly. Nonetheless, there is a possibility for more exciting discoveries in the atomic world.

We remember from our school chemistry course that every element has its own specific atomic number. It is the same as the number of protons that the atom of each element has, so sometimes atomic number is called proton number. It is always the whole number and it ranges from 1 to 118, according to the number of the element in the Periodic Table. This number can be really important and something essential to know, in relation to a certain chemical element which is the issue of our interest at the moment.

Why is this so? Why is the atomic number so important? First of all, it is the number that makes elements different from one another as it shows the number of protons in their nuclei. Also, knowing the atomic number of an element can give us an idea about the position of the element in the Periodic Table. Atomic number of an element never changes: for example, the atomic number of oxygen is always 8, and the atomic number of Chlorine is always 18. The atomic number is marked with the symbol Z, taken from a German word zahl (or atomzahl, which is 'atomic number' in German).

1. The group number in the periodic table represents number of valence electrons of the elements in a certain group. For example, all the elements in Group−1 have 1 electron in their outer most shell. Furthermore, what are the 7 groups of the periodic table?
2. Chemical elements listed by atomic mass The elements of the periodic table sorted by atomic mass. Click on any element's name for further information on chemical properties, environmental data or health effects. This list contains the 118 elements of chemistry.
3. Periodic number: 周期数 zhou1 qi1 shu4 periodic number: 週期數 zhou1 qi1 shu4 (grammar) number plus classifier, household (in census) 名数 ming2 shu4 (grammar) number plus classifier, household (in census) 名數 ming2 shu4 (math.) (number of) degrees of freedom, variance: 自由度 zi4 you2 du4 (math.) a number field: 数域.
4. The periodic table game available on this page is for entertainment purposes only, and should not be used to grade students on their knowledge of chemical elements. Easy Game Level. When shown an element name, find the corresponding element atomic number and symbol in the periodic table as quickly as you can! Medium Game Level.

The periodic table (also known as the periodic table of elements) is organized so scientists can quickly discern the properties of individual elements such as their mass, electron number, electron configuration and their unique chemical properties. Metals reside on the left side of the table, while non-metals reside on the right.

Periodic Number For Silver

This website is created for those who need to know the atomic number of a central chemical element. By using our website, you can do it in just one click and receive short and correct information on this matter. There is also some extra summary on every each chemical element which can be found at our website, including the atomic weight of each element, as well as physical and chemical properties of every element and its importance. Use this website at any time when you need to get fast and precise information about atomic or proton number of chemical elements.

List of chemical elements in periodic table with atomic number, chemical symbol and atomic weight. You can sort the elements by clicking on the table headers. Please click on the element name for complete list of element properties.

Periodic Number For Oxygen

Lists of Elements in Periodic Table

You can also list the elements in various ordered properties with printable tables below.

Periodic Table With Everything

Lists of Elements by Group Number in Periodic Table

Periodic Table Code