Bonding, Structure and Properties of Matter

Bonding, Structure and Properties of Matter

1. Ions

   • Charged particles - can be single or in a group
   • Atoms gaining or losing electrons to form ions - trying to make full outer shell
     • Metals form ions - lose electrons from outer shell to form positive ions
       • Group 1 and 2 - metals and lose electrons to form positive ions (cations)
       • Group 6 and 7 - non metals and gain electrons to form negative ions (anions)
     • Non-metals form ions - gain electrons from outer shell to form negative ions
   • Ionic bonding - transfer of electrons
     • Metal and non-metal react together - metal atom loses electrons (positive ion) and non metal gains electrons (negative ion)
       • Opposite charged ions - strongly attracted to each other (electrostatic forces)

2. Bonds

   • Ionic Bonding
     • When a metal and a non metal react with each other
     • They share electrons
       • Want to make full outer shells
         • Be like noble gases
           • Usually group 7 - halogens
             • Some gases
   • Metallic Bonding
     • metal and metal
       • also share electrons... i think
         • The giant metallic lattice thing is basically loads of metal particles with e- in them, which is the electron
           • ertgfyhjkl
             • basically i want to die
               • because la chimie is the devil's subject but like its that bad even he doesn't want it