19,879
edits
Changes
→Key Stage 4
: [[Metal]]s lose [[electron]]s to form [[Positive Ion|positive ions]] in [[compound]]s with [[non-metal]]s.
: [[Metal]]s form [[Hydroxide]]s when they [[Chemical Reaction|react]] with [[water]].
: [[Metal]] [[Oxide]]s, [[Metal]] [[Carbonate]]s and [[Metal]] [[Hydroxide]]s all have [[pH]] above 7.
: [[Salt]]s are [[metal]] [[compound]]s produced in [[Neutralisation]] [[Chemical Reaction|reactions]].
: [[Metal]] [[element]]s form [[Metallic Bond|metallic bonds]] in which [[Positive Ion|positive ions]] are surrounded by a sea of [[Delocalised Electron|delocalised electrons]].
: A [[metal]] made of more than one [[metal]] [[element]] is called an [[alloy]].
: [[Metal]]s make good [[Electrical Conductor|electrical]] and [[Thermal Conductor|thermal]] [[conductor]]s because the [[Delocalised Electron|delocalised electrons]] are free to move around the [[material]].