Periodic Number

  1. Periodic Number
  2. Periodic Number For Aluminum
  3. Periodic Number 13
Expression used to refer to a number whose decimal notation is repeating. It includes rational numbers where the decimal expansion does not have 0 or 9 as a period.


You can buy this periodic table poster and more at the WebElements periodic table shop. On 1 May 2014 a paper published in Phys. Khuyagbaatar and others states the superheavy element with atomic number Z = 117 (ununseptium) was produced as an evaporation residue in the 48 Ca and 249 Bk fusion reaction at the gas-filled recoil. 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. Weechat whatsapp app. Tin has been known since ancient times, and has characteristics feature of superconductor. Tin belongs to the carbon family and is widely used in container to form protective layer. Discovery and History Tin has been used since ancient civilization, mostly in the form of alloy as early as 3000 BC. After 600BC, Pewter purified metallic. Chemical elements listed by atomic number The elements of the periodic table sorted by atomic number. Click on any elements name for further chemical properties, environmental data or health effects. This list contains the 118 elements of chemistry. 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

The period of a number with a repeating decimal is noted with a horizontal line above the sequence of digits that repeats:
(dfrac{2}{13} = 0.153space846space153space846 … = 0.overline{153space846})

Periodic NumberNumber

Periodic Number For Aluminum


Periodic Number 13

  • The number (dfrac{3}{11}) is a periodic number where the period is 27, because: (dfrac{3}{11} = 0.272space727space272 … = 0.overline{27}).
  • The number (dfrac{2}{7}) is a periodic number where the period is 285 714, because: (dfrac{2}{7} = 0.285space714space285space714 … = 0.overline{285space714}).