Group 17: Oxidising Agents Halogens react with metals by accepting an electron from the metal atom to become an ion with 1- charge Eg.? ?Ca(s) + Cl2(g) → Ca2+(Cl-)2(s) Halogens are therefore?oxidis...
Group 17: Physical Trends The group 17 elements are called?halogens The halogens have uses in water purification and as bleaches agents (chlorine), as flame-retardants and fire extinguishers (bromi...
Trends in Solubility in Group 2 Hydroxides & Sulfates Group 2 hydroxides Going down the group, the solutions formed from the reaction of Group 2 oxides with water become more?alkaline When the ...
Group 2: Physical & Chemical Trends Chemical trends All elements in Group 2 (also called?alkali earth metals)?have the two electrons in their?outermost principal quantum shell All Group 2 metal...
Group 2: Thermal Decomposition of Nitrates & Carbonates Thermal decomposition?is the breakdown of a compound into two or more different substances using?heat Thermal decomposition of carbonates...
Reactions of Group 2 Oxides, Hydroxides & Carbonates Reactions of Group 2 oxides with water All Group 2 oxides are?basic, except for BeO which is?amphoteric?(it can act both as an acid and base...
Reactions of Group 2 Elements The Group 2 elements react with oxygen, water and dilute acids Group 2 reactions table Group 2 reactions with oxygen & water chemical equations Group 2 reactions w...
Periodicity: Predicting Position & Properties If the?chemical?and?physical?properties?of an element are known, the?position?of that element in the Periodic Table can be predicted Similarly, pre...
Bonding in Period 3 Chlorides & Oxides Period 3 chlorides The bonding and structure of the Period 3 elements are summarised in the table below: The table shows that?Na,?Mg?and?Al?are metallic e...
