IB Chemistry S3.1 Definitions
This page contains our IB Chemistry definitions for S3.1. By learning each one of these definitions, you will fully cover the content for IB Chemistry 'Further periodic table'.
complementary colours
two colours opposite one another on a colour wheel
complex ion
Complex composed of a central d-block metal ion coordinate bonded to electron-rich ligands
coordination number
Number of lone pairs bonded to the metal ion
electron repulsion
electrons try to move as far away from each other due to the repelling negative charges
ligand
Neutral molecule or anion with a non-bonding pair of electrons (commonly water)
monodentate ligand
One non-bonding electron pair
oxidation state
Akin to ionic charge, it represent the number of electrons gained or lost in order to form a covalent bond with another atom
polydentate ligand
More than one non-bonding electron pair
transition metal
Elements that form ions with an incomplete d-orbital in one of more of its oxidation states
valence shell
Outermost energy level of an atom
visible light
the part of the electromagnetic spectrum the human eye can see. contains wavelengths from 400nm to 700nm
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