A QUICK RECAP OF IONIC THEORY Discuss with the Person Next To YouYou have 3 - 4 minutes to discuss and recap what we did in the last two lessons before half term.You will be asked to feedback the class when we reconvene the class as a group to recap the lesson.
IONIC THEORY To explain that salts consist of ionsTo use ionic theory to explain some of the properties of salts To use ionic theory to explain the conductivity of salts when molten or in solution
Losing And Gaining ElectronsFor some atoms it is easier to lose electrons than to pick up new ones. Give 2 examples ofi) Atoms that will prefer to lose electrons than gain new onesii) Atoms that will prefer to gain or pick up new electrons than lose electrons.
IONIC THEORY Page 56- 57Why do solid compoundsmade of ions not conduct electricity? Copy Diagrams showing the movement of ions
Your Task Copy And Answer Task What happens to the atoms of alkalimetals and molecules of halogens when they react?
Ions in solid sodium chlorideChlorine (Cl) has 17 total electrons: 2 in its 1st shell, 8 in the 2nd, and 7 in the 3rd. We know that the capacity of the 3rd shell is 8, so chlorine will try to pick up another electron to fill its outermost shell.Where does it get this electron?
Atoms To Ions In this way both atoms now become ions.The opposite charges on the Na+ and Cl- ions will cause them to attract each other and form an ionic bond.Thus Na and Cl react to form the compound NaCl