Chemical Bonds CovalentPolar Non Polar IonicMetallic

Chemical Bonds CovalentNonmetalsIonic Metal and a Nonmetal MetallicMetals

Chemical Bonds CovalentNonmetals Valence Electrons Shared Ionic Metal and a Nonmetal Valence Electrons Transferred MetallicMetals Overlapping Valence Shells

Chemical Bonds CovalentNonmetalsIonic Metal and a Nonmetal MetallicMetals

Chemical Bonds CovalentNonmetalsIonic Metal and a Nonmetal MetallicMetals

Chemical Bonds CovalentNonmetalsIonic Metal and a Nonmetal MetallicMetals

Bohr Diagrams Lewis Dot Diagrams Ne Argon

Opposites Attract Like Charges Repel

Useful for first three periods or rows Atoms try to attain the nearest noble gas configuration Atoms will lose or gain electrons until their outermost valence shell is full. Atoms with a full valence shell are stable. N O Ne F 1s 2 2s 2 2p 3 1s 2 2s 2 2p 4 1s 2 2s 2 2p 5 1s 2 2s 2 2p 6

Electrons: Protons: +18 Charge: 0 18 Ar Argon 40 1s 2 2s 2 2p 6 3s 2 3p 6

Electrons: Protons: +17 Charge: 0 17 Cl Chlorine s 2 2s 2 2p 6 3s 2 3p 5

Electrons: Protons: +17 Charge: Cl Chlorine s 2 2s 2 2p 6 3s 2 3p 6

Electrons: Protons: +11 Charge: 0 11 Na Sodium 23 1s 2 2s 2 2p 6 3s 1

Electrons: Protons: +11 Charge: Na Sodium 23 1s 2 2s 2 2p 6 3s 1

Electrons: Protons: +10 Charge: 0 10 Ne Neon 20 1s 2 2s 2 2p 6

Electrons: Protons: +12 Charge: 0 12 Mg Sodium s 2 2s 2 2p 6 3s 2 -

Electrons: Protons: +12 Charge: Mg Sodium s 2 2s 2 2p 6

Atom that has lost or gained electrons Metals lose electrons and form positive ions. Nonmetals gain electrons and form negative ions. Cations are positive ions. Anions are negative ions. Cats have paws Cations are pawsitive Anion look like Onion Onions make you cry

Na Cl [1] Sodium wants to lose an electron [2] Chlorine wants to gain an electron

Na Cl [1] Sodium wants to lose an electron [2] Chlorine wants to gain an electron [3] Sodium’s valence electron is transferred to chlorine

Na Cl [1] Sodium wants to lose an electron [2] Chlorine wants to gain an electron [3] Sodium’s valence electron is transferred to chlorine [4] Sodium becomes a cation (+) and chlorine becomes an anion (-). + -

Na Cl [1] Sodium wants to lose an electron [2] Chlorine wants to gain an electron [3] Sodium’s valence electron is transferred to chlorine [4] Sodium becomes a cation (+) and chlorine becomes an anion (-). + - Na + Cl - [5] The sodium ion will combine with the Chloride ion because opposites attract Electrostatic Force! Electrostatic Force!

Na Cl [1] Sodium wants to lose an electron [2] Chlorine wants to gain an electron [3] Sodium’s valence electron is transferred to chlorine [4] Sodium becomes a cation (+) and chlorine becomes an anion (-). + - Na + Cl - [5] The sodium ion will combine with the Chloride ion because opposites attract Electrostatic Force! Electrostatic Force! Ionic Bond

Valence electrons are transferred. Occur between metals and nonmetals. Metals lose electrons (cations = + charge) Nonmetals gain electrons (anions = - charge). Electrostatic attraction of cations and anions.

Draw an Illustration of an ionic bond forming between Potassium and Fluorine. Explain the pictures on the following four slides in your notebook.