IONIC COMPOUNDS AND METALS
d.winsome@atakamul.edu.kw
LESSON 1 ION FORMATION
OCTET RULE
The most stable elements in the periodic table are noble gases why?
Because their valence sublevels are completely full of electrons(8 electrons).
They’re unreactive they rarely react?
Because their valence are completely full of electrons (8 electrons).
All the elements in the periodic table follow or copy noble gases, they`re going either
gain or lose or share electrons to have 8 electrons in their valence shell (Octet rule).
No of valence electrons=GP NO IN THE PERIODIC TABLE
elements only
Representative
LEWIS DOT STRUCTURE OF ELEMENTS
VALENCE ELECTRONS AND CHEMICAL BONDS
FORMING POSITIVE IONS(CATIONS)
FORMING POSITIVE IONS(CATIONS)
FORMING POSITIVE IONS(CATIONS)
FORMING NEGATIVE IONS(ANIONS)
FORMING NEGATIVE IONS (ANIONS)
LETS TRY THESE
Draw models to represent the formation
of the positive calcium ion and the
negative bromide ion
CLASSWORK ON FORMING NEGATIVE AND
POSTIVE IONS