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Agenda: Monday11/15/10

Agenda: Monday11/15/10. Reminders: Homework due Friday Notebook Due Friday Projects due next Monday Online Quiz due by Next Wed . 3 rd period only: No Bell work Taking Friday’s quiz instead Bell Work Graph Grades Work Day: Projects & Online Quiz Assign Homework.

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Agenda: Monday11/15/10

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  1. Agenda: Monday11/15/10 Reminders: Homework due Friday Notebook Due Friday Projects due next Monday Online Quiz due by Next Wed • 3rd period only: No Bell work • Taking Friday’s quiz instead • Bell Work • Graph Grades • Work Day: Projects & Online Quiz • Assign Homework

  2. Bell Work: Monday 11/15/10 Pick up new bell work paper. Cut and attach to page 34, after you’ve answered: What are the ways you can identify an element? Number of protons Atomic number The number of valence electrons of an element? Group number (A groups only) Writing the electron configuration The energy level (shell) of an element? Period number Writing the electron configuration

  3. Agenda: Monday11/15/10 Reminders: Homework due Friday Notebook Due Friday Projects due next Monday Online Quiz due by Next Wed • Work Day • Project Presentations will start Next Monday: Order is determined by your topic • You get your topic after you finish the intro worksheets • Tomorrow is not a work day, new notes Tues & Wednesday. Friday will be your only other work day • Work on online quiz • Assign Homework

  4. Agenda: Tuesday11/16/10 Reminders: Homework due Friday Notebook Due Friday • Bell Work • Guided Notes: Cations and Anions • Ion Activity • Mini Quiz/Exit Ticket

  5. Noble gases, inert gases, Group 8a, Group 18 Bell Work: Tuesday 11/16/10 Their valence electrons are in complete orbitals ns2np6 Which group of elements in the Periodic Table is least reactive? Why?

  6. Guided Notes: Cations and Anions First, some basics: • A neutral atom that gains one or more electrons will have a ________________ charge. negative • A neutral atom that loses one or more electrons will have a ________________ charge. positive • An atom that has a charge is called an ___________. ion cation • A positive ion is called a _______________. • A negative ion is called an ____________. anion

  7. Why would an atom lose one or more of its electrons? Why would an atom gain one or more electrons? Let’s build some atoms and ions and see if we can find out.

  8. 1. Metals in group __ lose one electron to obtain a ____ ____ _______________. They become Li+, Na+, K+ etc. 1A noble gas configuration 2A two 2. Metals in group ___ lose ____ electrons to obtain a noble gas configuration. They become Be2+,Mg2+,Ca2+ etc. 7A one 3. Halogens in group ___ gain ___ electron to obtain a noble gas configuration. They become F-, Cl-, Br- etc. 4. Elements in group ___ gain ___ electrons to obtain a noble gas configuration. They become O2-, S2-, Se2- etc. 6A two Notes go on page 124 of your notebook

  9. Exit Ticket 1. On a piece of paper predict and explain the change that must occur in electron configuration if sulfur is to achieve a noble gas configuration. 2. Write the electron configuration of the sulfur ion that has a noble gas configuration. Is this a cation or an anion? 3. Is this a cation or an anion?

  10. Agenda: Wednesday11/17/10 Reminders: Homework due Friday Notebook Due Friday • Bell Work • Guided Notes: Introduction to Bonding • Practice problems

  11. 1. Write the electron configuration for the ion of chlorine that has a noble gas configuration 1s22s22p63s23p6 Bell Work: Wednesday 11/17/10 2. Write this ion using proper chemical notation Cl-

  12. A. The covalent bond 1. Atoms _________ one or more electrons with each other to form a bond. share complete 2. Each atom will have a _____________ outer shell of electrons. nonmetals 3. Covalent bonds form between two _____________. water (H2O) Examples of covalent compounds: ____________, _____________, _________________, _____________________. hydrogen gas (H2) methane (CH4) table sugar (C12H22O11)

  13. B. The ionic bond oppositely 1. Ionic bond – The force that holds ___________ charged particles together in an ionic compound. metal 2. An ionic bond forms between a _____ ion with a positive charge and a ________ ion with a negative charge. nonmetal complete 3. Each atom will have a ________ outer shell of electrons. table salt (NaCl) 4. Examples of ionic compounds: ________________, ____________________, _____________________. calcium chloride (CaCl2) magnesium oxide (MgO)

  14. Example: Explain the formation of an ionic compound between the elements magnesium and chlorine. 1. First figure out how each element can obtain a noble gas configuration. Mg2+ lose two Magnesium can _____ _____ electrons to form ______. Chlorine can _____ _____ electron to form ____. Cl- gain one 2. Next, figure out how to make the total charge on the neutral compound be ______. zero two You will need ____ chlorine atoms to cancel out the charge on the magnesium atom. 3. MgCl2 This is the chemical formula for magnesium chloride.

  15. Practice!

  16. Agenda: Wednesday11/17/10 Reminders: Homework due Friday Notebook Due Friday • Bell Work • Guided Notes: Introduction to Ionic Bonding • Practice problems-Cooperative learning

  17. 1. Write the electron configuration for the ion of chlorine that has a noble gas configuration 1s22s22p63s23p6 Bell Work: Wednesday 11/17/10 2. Write this ion using proper chemical notation Cl-

  18. The Ionic Bond oppositely 1. Ionic bond – The force that holds ___________ charged particles together in an ionic compound. 2. An ionic bond forms between a _____ ion with a positive charge and a ________ ion with a negative charge. metal nonmetal complete 3. Each atom will have a ________ outer shell of electrons. table salt (NaCl) 4. Examples of ionic compounds: ________________, ____________________, _____________________. magnesium oxide (MgO) calcium chloride (CaCl2) 5. The net charge on an ionic compound is zero. The charge of the cation(s) must cancel out the charge of the anion(s).

  19. Example: Explain the formation of an ionic compound between the elements magnesium and chlorine. 1. First figure out how each element can obtain a noble gas configuration. Mg2+ lose two Magnesium can _____ _____ electrons to form ______. Chlorine can _____ _____ electron to form ____. Cl- gain one 2. Next, figure out how to make the total charge on the neutral compound be ______. zero two You will need ____ chlorine atoms to cancel out the charge on the magnesium atom. 3. Write the chemical formula for the compound with the metal first: MgCl2 (This means 1 Mg atom, and 2 Cl atoms.)

  20. Practice with cooperative learning groups 1. Groups of 4 people. (table groups) 2. Everyone gets a sheet with problems on it. 3. Each person choose a different color pencil. Sign each paper in your color as it comes to you. Use your color. 4. Each person does step 1 on their own paper. 5. When I say time, pass the paper to the right, and do step two. 6. When I say time, pass the paper to the right, and do step three. 7. When I say time, pass the paper to the right, and check the answer. Correct any errors, and discuss with table

  21. Exit Ticket Muddiest point: Describe the part of today’s lesson that is the least clear to you.

  22. Agenda: Thursday 11/18/10 Reminders: Homework due Friday Notebook Due Friday Projects due next Monday Online Quiz due by Next Wed • Bell Work • Ion & Ionic Bond Practice • Homework Questions?

  23. Ca: • 1s22s22p63s23p64s2 20, 20, 2 Bell Work: Thursday 11/18/10 Ca2+ 1s22s22p63s23p6 Page 35: Write the electron dot structure & the electron configuration for Calcium: How many protons, electrons & valence electrons does Calcium have? Now, determine the ionic form of Calcium, write its symbol & its ionic electron configuration: How many protons, electrons & valence electrons does an ion of Calcium have? 20, 18, 8

  24. Agenda: Thursday 11/18/10 Reminders: Homework due Friday Notebook Due Friday Projects due next Monday Online Quiz due by Next Wed • Bell Work • Ion & Ionic Bond Practice • Homework Questions?

  25. Agenda: Friday 11/19/10 Reminders: Homework due Notebook Due Projects due next Monday Online Quiz due by Next Wed • No Bell Work • Turn in Homework first (< 3min. After bell) • Work Day • Questions to be able to answer on project: • What is your topic about (define/explain meaning)? • What is the trend (down groups and across periods)? • Why does the trend exist (what is causing the trend)?

  26. Monday Presentation Order: Cesar & Alice Donte Jamaul Annastasia & Jessica Richard & Tanner Ashlee & Korea Laron & Tavis Carlos & Jalen • Atomic number • Atomic radius • Boiling points • Density • Electron affinity • Electro-negativity • Energy Levels • First Ionization energy • Alexis & Mykael • Kaylin • ------- • Derrick & Josaphine • David & Marylene • Najee • Brandon & Shannon • Natavia

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