Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
a zigzag, stepped line on the periodic table that separates the metals from the non-metals.
a measure of the amount of substance per unit volume. Unit: mol.dm-3
the transfer of electrons from one atom to another atom to form positive and negative ions...
an electron pair in which each atom provides one electron for the bonding pair.
a diagram that shows the electrons in the outermost occupied shell of an atom as dots or crosses...
a group of organic compounds where an oxygen atom has replaced two hydrogen atoms on an end...