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ICA # 15

ICA # 15. On pg. 158, define an electron dot diagram? On pg. 158, when is an atom stable and not likely to react? On pg. 158, what represents the nucleus and all the other electrons in an atom? On pg. 139, define valence electrons?

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ICA # 15

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  1. ICA # 15 • On pg. 158, define an electron dot diagram? • On pg. 158, when is an atom stable and not likely to react? • On pg. 158, what represents the nucleus and all the other electrons in an atom? • On pg. 139, define valence electrons? • On pg. 139, what groups have the same number of valence electrons? • On pg. 140, provide the electron dot diagram for He? • On pg. 140, provide the electron dot diagram for P?

  2. ICA # 16 • On pg. 159, why do elements react? • ON pg. 159, how do elements achieve stable electron configurations? • ON pg. 160, what is an element called that has lost electrons to have a full outer energy level? • ON pg. 160, what is an element that has gained electrons to fill its outer energy level called?

  3. Octet Rule Notes • Octet Rule – states that the outer energy level or shell of an atom wants to have 8 electrons to be stable.

  4. Electron Dot Diagram Online Activity Use the Website to Find the Electron Dot Diagrams for the following elements: • H • He • O • F • Ne • B

  5. Electron Dot Diagram Online Activity Use the Website to Find the Electron Dot Diagrams for the following elements if they are Ions: • H • He • O • F • Ne • B

  6. B/4 Bellwork • Get Book!!! • Get Periodic Table and Marker!!! • Get Handout!!! • Get out Grading Sheet!!! • Get out Ionic Charge Worksheet 1!!! • Get out Basic Atomic Structure Worksheet!!!

  7. After Bellwork 33 – April 29th Provide the Bohr and Lewis Structure for the following elements: • Br • Na • N • O • Cl • Mg • Al • P

  8. Lewis Diagrams and Bohr Model for Ions Practice

  9. ICA # 17 • On pg. 159, draw the transfer of electrons from sodium to chlorine? • On pg. 159, cite the reason why from the text that sodium would lose an electron to chlorine? • On pg. 159, cite the reason why from the text that chlorine would gain an electron from sodium? • On pg. 160, define ionic bond? • On pg. 161, draw the transfer of electrons from 1 Mg atom to 2 Chlorine atoms? • On pg. 161, determine what compounds that contain ionic bonds are called? • On pg. 161, What two things do chemical formulas display? • On pg. 161, why must there be two chlorine atoms bind to one Magnesium atom? • On pg. 161, provide the chemical formula for the compound formed from magnesium and chlorine? • On pg. 161, provide the type of number 2 is in the chemical formula for # 9?

  10. Ions Notes Metals – Non – Metals -

  11. Ionic Formulas Notes

  12. Chemical Formula Notes

  13. Article # 8 • Provide the chemical name for table salt that is given in the article? • Cite from the article evidence to support the saying that salt has many uses? • Provide common uses of salt? • Provide industrial uses of salt? • Provide medical uses of salt? • Define the following words based on their use in the article? Electrolysis and Ophthalmic: • Cite from the article a reason for why Mahatma Gandhi did not consume salt in his diet? • Cite evidence from the article that describes how salt can put out fires?

  14. Metals • Shiny • Solids (at room temp) • Malleable – can be hammered flat • Ductile – drawn into thin wires • High Conductivity – ability to transfer heat or electricity • Reactivity increases as move along period

  15. Metalloids • In between metals and nonmetals • Solids (at room temp) • brittle and hard • Semiconductors – can conduct electricity under some conditions

  16. Nonmetals • Opposite of properties of metals • Not shiny • Poor conductors • Mostly gases (at room temperature) • Solids are brittle • More reactive as move left to right Sulfur

  17. Trends of a Row or Period • Elements become less metallic and more non-metallic as move left to right on Periodic Table.

  18. Families and Characteristics Notes 1. 2. 3. 4. 5. 6. 7. 8. 9.

  19. ICA # 18 • On pg. 161, define ionization energy level? • On pg. 161, how does ionization energy change from left to right on the periodic table? • On pg. 161, how does ionization energy change from top to bottom on the periodic table? • On pg. 162, define crystals? • ON pg. 162, cite from the text what the shape of an ionic crystal depends on? • ON pg. 162, cite from the text how ionic crystals are classified? • On pg. 163, provide the two most common physical properties of most ionic compound? • On pg. 163, cite from the text the reason for ionic compounds having these two properties?

  20. Article # 9 • Cite from the article a use for sodium iodide? • Cite from the article a reason for why the human body needs iodine? • Provide the organ of the body that the article mentions needs Iodine? • Cite from the article evidence or symptoms that may occur from a lack of Iodine? • Provide a list of foods that the article mentions that contain Iodine? • Define throtoxicosisand provide from the reason given in the article for why this condition occurs? • Cite from the article evidence for why Americans would not have to worry about Iodine deficiency?

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