Only one letter does not appear in the periodic table of elements: do you know which one?


A single letter does not appear in the famous periodic table of elements. Do you know what letter it is?


The periodic table of elements is an essential resource for the scientific body, allowing us to understand and predict the properties and behaviors of the elements and their compounds. Each chemical symbol in this table consists of one or two letters of the alphabet . However, only one letter is missing: do you know which one?


The periodic table of elements, an essential resource for scientists

The periodic table of elements is a systematic arrangement of all chemical elements , classified according to their electronic structure and properties.


This table is organized into horizontal rows called periods, and vertical columns called groups. Chemical elements are numbered according to their atomic number, corresponding to the number of protons present in their nucleus. Each element is represented by a chemical symbol consisting of one or two letters .


Between groups and periods

Period 1 contains the lightest elements: hydrogen and helium. Period 2 contains lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon. Subsequent periods add an additional electron and proton to the nucleus of the elements preceding them.


Elements located in the same column have similar chemical properties due to their identical electronic configuration. For example, Group 1 elements , the alkali metals, have a unique, reactive external electronic valence. The elements of group 18, for their part (the noble gases), have a stable and inert electronic configuration.


What is the only letter not on the periodic table?

Symbols for elements in the periodic table are usually abbreviations based on their names in English, Latin, or German . While these symbols are often single letters, two letters can sometimes be used to represent an element. This is particularly the case for sodium (“Na”) and iron (“Fe”).


The only letter not on the periodic table is the letter "J." You are free to check…


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