Zone d’entraide

TurquoiseAquamarine9724

Hi,

I would like to know how to describe the concept of an ion and how to relate the charge of a monatomic ion to its position on the period table.

thank you.

Kylan T

Hi TurquoiseAquamarine,

Thanks for your question!

An ion is an atom (or a group of atoms) that does not have as many positive charges (protons) as negative charges (electrons). These atoms therefore have a final positive or negative charge. For instance, Ca2+ is an ion, with a positive charge of 2.

To relate the charge of a monoatomic ion to its position in the periodic table, you need to keep in mind the octet rule. The octet rule is the tendency of atoms to acquire the electronic configuration of the nearest noble gas in the periodic table.

To obtain a stable electronic configuration, an atom will seek to gain or lose one or more electrons by ionization. It will thus produce ions, which can be used to form a molecule.

Since the number of valence electrons of an element matches its family number in the periodic table, you can deduce the number of electrons it tends to lose or gain, and therefore the charge of monoatomic ions it can form.

Ce contenu est protégé par le droit d'auteur. Toute reproduction à l'extérieur des forums Alloprof est interdite et pourra être considérée comme une violation du droit d'auteur.

You may find more information right here:

https://www.alloprof.qc.ca/en/students/vl/sciences/ionic-and-covalent-bonds-s1070

Hope this answers your question:)

Kylan