'Nonmetals' diaporamas de présentation

Chapter 9 Chemical Bonding I: Lewis Theory

Chemistry: A Molecular Approach , 2nd Ed. Nivaldo Tro. Chapter 9 Chemical Bonding I: Lewis Theory. Roy Kennedy Massachusetts Bay Community College Wellesley Hills, MA. HIV-Protease. HIV-protease is a protein synthesized by the human immunodeficiency virus (HIV).

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A Brief History of the Elements

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Covalent bonding

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Science Question of the day!

Science Question of the day!. Would you weigh more or less on the moon than you do on earth? Write the question and the answer in your science notebook. Be sure to explain your reasoning and use complete sentences!. Answer!.

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Chapter 8 Periodic Properties of the Elements PART 2

Chapter 8 Periodic Properties of the Elements PART 2. Trends in Atomic Radius Transition Metals. Atoms in same group increase in size _____________ the column Atomic radii of transition metals roughly same size _____________________

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Atoms - Molecules - Ions

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Advanced Physical Science B

Advanced Physical Science B. Chemistry in Review: The Ions Chemical Formulas Chemical Equations Stoichiometry. The Ions. Ions. In general ions are formed from that lose or gain enough electrons to gain a full octet in their valence shell.

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Chapter 10

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Chemical & Physical Changes

Chemical & Physical Changes. In a physical change , the chemical composition of the substance remains constant. Examples of physical changes are the melting of ice or the boiling of water. In a chemical change , the chemical composition of the substance changes; a chemical reaction occurs.

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Ions

Ions. Ions : A charged particle formed when a neutral atom or group of atoms gain or lose one or more electrons. Example Na ? Na + + e - F + e - ? F -. Cations. Mg ? Mg 2+ + 2e - Al ? Al 3+ + 3e - Cation: A positively-charged ion. One or more electrons are lost from a neutral atom

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History

History. Ch. 5 - The Periodic Table. Mendeleev. Dmitri Mendeleev (1869, Russian) Organized by increasing atomic mass . Grouped by properties Some discrepancies . Mendeleev (continued). Dmitri Mendeleev (1869, Russian) Predicted properties of undiscovered elements. Moseley.

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Unit 4 The Periodic Table

Unit 4 The Periodic Table. Chemistry I Mr. Patel SWHS. Topic Outline. Continue Learning Major Ions Organization of the Periodic Table (6.1) Classification of Elements (6.1) Tour of the Periodic Table (6.2) Periodic Trends (6.3). Organizing the PT.

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Covalent Bonding Skeleton Diagrams

Covalent Bonding Skeleton Diagrams. Edward A. Mottel Department of Chemistry Rose-Hulman Institute of Technology. Only the noble gases have exactly the correct number of electrons to fill their outermost s and p orbitals. All other atoms have to lose, gain or share

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Chapter 9 Chemical Names and Formulas Section 9.1 Naming Ions

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Oxidation numbers

Section 2. Oxidation numbers. Section 2 Oxidation Numbers. Chapter 7. Oxidation Numbers. The charges on the ions in an ionic compound reflect the electron distribution of the compound.

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chapter 12 chemical bonding

chapter 12 chemical bonding. Essentially everything we see around us, natural or man-made, compounds or elements, has atoms bonded with atoms Hard or soft, solid, liquid, or gas; these properties are determined by bonding Their structures play the major role in chemical rxns all around us

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Chem Com Unit 1A

Chem Com Unit 1A. Building blocks of chemistry. Properties. Properties that can be determined without altering the chemical make-up of a substance Physical Color Density Odor Properties that are determined only when a substance has undergone a change into one or more substances Chemical

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Metals and NonMetals

Metals and NonMetals. Two major groups of elements Found on the periodic table Metals are located to the left of the zigzag line Nonmetals are located to the right of the zigzag line. Physical Properties of Metals. Have Luster -shiny

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Reactions Reference

Reactions Reference. Solubility Rules. 1. All nitrates, acetates, and chlorates are soluble. 2. All chlorides, bromides, and iodides are soluble except for Ag + , Hg 2 2+ , and Pb 2+ 3. All sulfates are soluble except for Ca 2+ , Sr 2+ , Hg 2 2+ , Pb 2 + , and Ag +

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