18 Oct  Take out Homework: Week 6 Homework #6- 9 AND class work from Friday  Objective: SWBAT model and describe the structure of atoms and trends in ionization.  Do now: Sketch an atom of sodium. Draw an arrow pointing to the valence shell. How many valence electrons are there? What ion does sodium form? Write the symbol.

Agenda I. Do now, homework check II. Review from last week III. Clicker “quiz” (counts as classwork grade) IV. Hand back papers and progress reports Homework: none

Review from last week

Ions formed by group - Add to your PTE Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table Cations Anions Lose e - Gain e -

How many TOTAL electrons does an atom of Lithium (Li) have? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table

How many TOTAL electrons does an atom of Magnesium (Mg) have? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table

How many TOTAL electrons does an atom of Chlorine (Cl) have? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table

How many VALENCE electrons does an atom of Lithium (Li) have? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table

How many VALENCE electrons does an atom of Magnesium (Mg) have? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table

How many VALENCE electrons does an atom of Chlorine (Cl) have? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table

Since Chlorine has 7 valence electrons, to satisfy the octet rule, it must: Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Do nothing 2. Gain one electron 3. Lose one electron 4. Lose 7 electrons

Since Lithium has 1 valence electron, to satisfy the octet rule, it must: Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Do nothing 2. Gain one electron 3. Lose one electron 4. Gain 7 electrons

Since Magnesium has 2 valence electrons, to satisfy the octet rule it must: Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Do nothing 2. Gain 2 electrons 3. Lose 2 electrons 4. Gain 6 electrons

Since neon (Ne) has 8 valence electrons, to satisfy the octet rule it must: Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Do nothing 2. Gain 2 electrons 3. Lose 8 electrons 4. Gain 8 electrons

Ions formed by group - Add to your PTE Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table Cations Anions Lose e - Gain e -

What is the correct symbol for a Lithium ion? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Li + 2. Li - 3. Li Li 2-

What is the correct symbol for a Magnesium ion? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Mg + 2. Mg - 3. Mg Mg 2-

Which of the following pairings is correct? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Magnesium/Cation 2. Chlorine/Anion 3. Lithium/Cation 4. Sulfur/Anion 5. All of the above

What is the name of the ion formed from the element Fluorine? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Fluorine 2. Fluorate 3. Fluorite 4. Fluoride

What is the name of the ion formed from the element Lithium? Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table. 1. Lithium 2. Lithiate 3. Lithite 4. Lithide

C: 19 Oct Ionic Bonding  Copy in notebook: Objective: SWBAT model ionic bonding and write names and formulas for ionic compounds  Do now: On handout!!  Draw a picture of one atom of sulfur. Draw an arrow showing the valence shell. Answer the questions to the right. 1. Total number of electrons: ___________ 2. Number of valence electrons: ___________ 3. Gain or lose electrons to form a full valence shell? ________ 4. How many will it gain or lose? ______ 5. Symbol with charge: _________

Agenda I. Do now II. Ionic bonding notes III. Naming compounds practice IV. Ionic bonding modeling V. Writing formulas practice VI. Ionic bonding “Speed Dating” Homework: Finish Week 6 Homework SWBAT model ionic bonding and write names and formulas for ionic compounds

A: 19 Oct Ionic Bonding  Copy in notebook: Objective: SWBAT model ionic bonding and write names and formulas for ionic compounds  Do now: On handout!!  Draw a picture of one atom of sulfur. Draw an arrow showing the valence shell. Answer the questions to the right. 1. Total number of electrons: ___________ 2. Number of valence electrons: ___________ 3. Gain or lose electrons to form a full valence shell? ________ 4. How many will it gain or lose? ______ 5. Symbol with charge: _________

Agenda I. Do now II. Ionic bonding notes III. Naming compounds practice IV. Ionic bonding modeling V. Writing formulas practice Homework: Finish Week 6 Homework SWBAT model ionic bonding and write names and formulas for ionic compounds

Ionic Bonding  To gain or lose electrons, atoms need to give or take them from other atoms  Ionic bond – one atom gives one or more electrons to another atom  The oppositely charged ions are attracted to one another (electrostatic attraction)  this causes them to become bonded together  Ions will transfer electrons (and bond) so that they both get 8 valence e- SWBAT model ionic bonding and write names and formulas for ionic compounds

Illustrating ionic bonding  Dot Structures – show the element symbol with the valence electrons surrounding it on 4 sides FLi SWBAT model ionic bonding and write names and formulas for ionic compounds

Ionic Bonding Demo with marbles SWBAT model ionic bonding and write names and formulas for ionic compounds

Sodium metal reacts with chlorine gas to form solid sodium chloride Na + + Cl -  NaCl Na

A: 20 Oct  Take Out Homework: Week 6 Homework  Objective: SWBAT model ionic bonding and write names and formulas for ionic compounds.  Do now: On your handout: Write the formula or the name of the ionic compounds below: 1. magnesium chloride 2. CaO 3. sodium sulfide 4. AlBr 3 5. aluminum iodide

Agenda I. Do now II. Homework check III. Review writing names and formulas for ionic compounds IV. Ionic bonding “Speed Dating” Homework: Revise your Week 6 Homework

Naming ionic compounds  Write the cation name  Name of the element  Write the anion name  Beginning of element name + -ide  Ex 1: LiCl  Ex 2: Al 2 O 3 SWBAT model ionic bonding and write names and formulas for ionic compounds

Practice Naming Ionic Compounds 1. CaF 2 2. BeO 3. Li 2 O 4. KBr 5. Rb 2 S 6. Al 2 O 3 7. SrCl 2 8. MgO SWBAT model ionic bonding and write names and formulas for ionic compounds

Writing Formulas for Ionic Compounds 1. Write each ion symbol with the charge 2. “Cross” the charges down to the bottom of the opposite element 3. Rewrite symbols with subscripts 1. Do not write + or – Example: Ex 1: lithium chloride Ex 2: aluminum oxide Ex 3: lithium sulfide

Writing formulas from names 1. potassium chloride 2. magnesium bromide 3. rubidium sulfide 4. beryllium fluoride 5. sodium oxide 6. magnesium sulfide 7. aluminum oxide 8. aluminum iodide

IONS SPEED DATING Objective: SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table.  Fill in your 4 ion cards (8 minutes)  Mingle with your classmates to make 10 ionic compounds. Fill in all four columns of the chart  Each correctly named compound will earn you 10 points. Each compound over 10 will earn you bonus points!  Check to be sure you write the CATION first!

 Share out results of “speed dating”

Homework  Revise Week 6 Homework SWBAT model ionic bonding and write names and formulas for ionic compounds

A: 21 Oct  Take out homework: Week 6 Homework  Objective: SWBAT write names and formulas for ionic compounds with polyatomic ions  Do now: Write the formula or the name of the ionic compounds below: 1. magnesium oxide 2. CaS 3. lithium oxide 4. AlF 3 5. cesium sulfide

Agenda I. Do now II. Homework check: any remaining questions? III. Review of writing formulas from compound names IV. Compounds with polyatomic ions Homework: Week 7 Homework #1-30

 So far, each ionic compound has had only two elements.  Can they have more than 2?  yes!

Polyatomic Ions  Ions made of more than one element  Have an overall charge  Ex: NO 3 -  This is a nitrogen atom, bonded to three oxygen atoms  The whole thing has a charge of 1-

Polyatomic Ions to Memorize  NO 2 - nitrite  NO 3 - nitrate  OH - hydroxide  SO 4 2- sulfate  CO 3 2- carbonate  PO 4 3- phosphate  NH 4 + ammonium

Naming ionic compounds with polyatomic ions  Cation name + anion name  If the anion is a polyatomic ion, use the name of the polyatomic ion  Ex 1) KNO 3  Ex 2) Ca 3 (PO 4 ) 2

Writing names of ionic compounds  Given the formula, write the name: 1. NaNO 2 2. Ca(NO 3 ) 2 3. Rb 2 SO 4 4. AlPO 4 5. NH 4 Cl 6. Al 2 (CO 3 ) 3 7. Mg(OH) 2

Writing Formulas for Ionic Compounds with Polyatomic Ions 1. Write the symbols/formulas with charges for the anion and the cation 2. “Cross” the charge down to the bottom of the other side 1. Do not write the + or – 3. Rewrite formula without charges, but with the subscripts only  Ex 1) sodium sulfate  Ex 2) magnesium nitrate

Writing Formulas  Write formulas for the following ionic compounds: 1. sodium nitrite 2. sodium nitrate 3. magnesium sulfate 4. aluminum carbonate 5. calcium hydroxide 6. ammonium oxide 7. ammonium chloride 8. magnesium nitrate

Homework  Week 7 Homework #1-30

C: 22 Oct  Take Out Homework: Week 7 #1-30  Objective: SWBAT write names and formulas of ionic compounds that use the stock system.  Do now: Write the formula or the name of the ionic compounds below. Don’t forget to use parenthesis when you cross the charges! 1. magnesium nitrate 2. CaSO 4 3. lithium hydroxide 4. AlPO 4 5. ammonium iodide

Agenda I. Do now II. Homework check III. Stock system: Names and formulas IV. Mixed practice: Writing names and formulas of ANY ionic compound! Homework: Week 7 Homework #

A: 22 Oct  Take Out Homework: Week 7 #1-30  Objective: SWBAT write names and formulas of ionic compounds that use the stock system.  Do now: Write the formula or the name of the ionic compounds below. Don’t forget to use parenthesis when you cross the charges! 1. magnesium nitrate 2. CaSO 4 3. lithium hydroxide 4. AlPO 4 5. ammonium iodide

Agenda I. Do now II. Homework check III. Stock system: Names and formulas Homework: Week 7 Homework #

 So far, we have written names and formulas for ionic compounds with two elements, and ionic compounds with polyatomic ions.  What if the cation isn’t from groups 1, 2 or 13?  Oh no!

 Many elements from the middle of the periodic table (groups 3-13) form cations, but we don’t have a trend on the periodic table.  Transition Metals  How do we know what charge these cations have?!

Stock system  Iron (Fe)  Fe 2+ Iron (II)  Fe 3+ Iron (II)  Using Roman Numerals to indicate which charge a transition metals have.  Which elements?  Cr, Mn, Fe, Co, Cu, Hg, Sn, Pb

Examples: Writing formulas  Ex 1) iron (II) chloride  Ex 2) copper (I) oxide  Ex 3) tin (IV) sulfide

Examples: Writing names  Ex 1) Fe 2 O 3  Ex 2) PbI 2  Ex 3) FeO

Practice Problems  Write the names or formulas for the following ionic compounds using the stock system 1. CuI 2 2. lead (II) sulfide 3. CuBr 2 4. iron (II) chloride 5. SnO 6. lead (IV) bromide 7. Sn 3 P 4 8. chromium (III) chloride

Homework  Week 7 Homework #

Mixed Practice  With your partner, complete the worksheet.  Hints:  If the anion ends in “-ide” it is an ionic compound with two elements.  If the anion ends in “-ate” or “-ite” the compound includes a polyatomic ion.  If the compound includes a transition metal (Fe, Cu, Sn, Pb…), use the stock system.

Review Answers to Worksheet

Homework  Week 7 Homework #