Ion-estly do not share but I’m neutral about it Fatal Attraction -Ionic Bonding Ion-estly do not share but I’m neutral about it

Bonds are attractions between 2 or more atoms Certain elements are more likely to bond than others. Why does this occur?

Bonds are attractions between 2 or more atoms Certain elements are more likely to bond than others. Why does this occur? Number of valence electrons Energy levels 2 and above prefer 8 e- AKA Octet Rule Attractions from protons and e- cause the e- to transfer

ION – Transfer of Electrons Charged atom Negative (gain an e-ANION) Positive (loose an e-CATION) Atoms transfer an electron to another Results in dropping of an energy level and developing a charge

ION – Charged stability Most common COMPOUNDS are formed by the transferred e- from GROUP 1. Which group would these elements most likely join with? GROUP 7 because their valence shell is nearly complete reaching STABILITY! Draw and example Draw electron dot diagrams for the following compounds include the charges in the chemical formula NaCl KI P 558-559

Practice Identify the number of valence e- for each element in the chemical formula Which element will transfer its e- Create an electron dot diagram for each compound Include the charges of the ions NaCl KI

ION – Charged stability Most common COMPOUNDS are formed by the transferred e- from GROUP 1. Which group would these elements most likely join with? GROUP 7 because their valence shell is nearly complete reaching STABILITY! Draw electron dot diagrams for the following compounds include the charges in the chemical formula Na+Cl- K+I- Circle and highlight positive and negative ions What is the total charge (net charge) of the compound? P 558-559

IONIC BOND When an atom looses or gains an e- The atom becomes charged The new negative and positive charge of the atoms causes them to be attracted to one another Overall net charge of zero Usually formed between metals and non-metals across the periodic table

Watch Ionic Bonding Animations Recap Some elements develop stability by teaming up with other elements Octet rule Ions – do not share e-, give or take AKA transfer e- Likely to happen between metals and non metals After the transfer of e-, atoms are attracted to one another due to their new charge Negative (gain an e-ANION) Positive (loose an e-CATION) Ionic bonding Watch Ionic Bonding Animations