'7 valence electrons' diaporamas de présentation

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Larry Emme Chemeketa Community College

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Larry Emme Chemeketa Community College

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Electron Configurations

Electron Configurations. Bohr. Bohr proposed that the hydrogen atom has only certain allowable energy states. Bohr suggested that the single electron in a hydrogen atom moves around the nucleus in only certain allowed circular orbits. De Broglie.

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Elements and Their Properties

Elements and Their Properties. What Makes an Element Reactive?. An incomplete valence electron level. All atoms (except hydrogen & helium) want to have 8 electrons in their very outermost energy level (This is called the rule of octet .)

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Atomic number = # of protons = # of electrons (neutral atom)

INTRO / REVIEW. Atomic mass. Atomic number = # of protons = # of electrons (neutral atom). Carbon has an atomic number of 6, which means it has 6 ________ in its nucleus and 6 __________ orbiting around the nucleus. protons. electrons. Organization of Your Periodic Table.

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Unit 5 Chemical Bonding

Unit 5 Chemical Bonding. Chapter 6.1 Lewis Dot Diagrams & Ions. Stable Electron Configurations. When is an atom unlikely to react? When the outer shell (highest occupied energy level) is filled with electrons 8 e - for Octet Rule Noble gases are the most stable elements.

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Chapter 14

Chapter 14. Chemical Periodicity. Objective A. Chapter 14 is a very short chapter. We also already know some of what is in this chapter. The Periodic Table groups elements according to their properties. Look at the first group. It has H and Li and Na, etc.

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IPC 7.D

IPC 7.D. Relate the chemical behavior of an element, including bonding, to its placement on the periodic table. Elements are made of atoms. Atoms contain protons, neutrons and electrons. Example: Lithium atom. Lithium has: 3 protons (red) 4 neutrons (blue) 3 electrons (black).

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Electron Configurations and the Periodic Table

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BELLRINGER!!! YOU HAVE 5 MINUTES LEFT!

BELLRINGER!!! YOU HAVE 5 MINUTES LEFT!. DIVIDE YOUR NOTECARD INTO 4 SECTIONS AND COMPLETE THE FOLLOWING CHART ACCORDING TO THE NUMBER OF VALENCE ELECTRONS EACH HAS. Ex: Chlorine. Cl. BELLRINGER!!! YOU HAVE 4 MINUTES LEFT!.

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Electrons

Electrons. Chemistry Dr. May. Atomic Inventory. Protons (Atomic Number) Neutrons (Atomic Mass minus Protons) Electrons (Same number as protons). Atomic Particles. nucleus. 1. + 1. nucleus. 1. 0. ? 1. cloud. 0. Electron Function.

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The Periodic Table Families

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Atoms

Atoms. Elements and Atoms Terms. Matter is anything that has mass and takes up space. Elements are the simplest pure substance and they can not be broken into any other substance.

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WHO AM I?

WHO AM I?. Alex, Jerry, Tin Chemistry Group. How do we write the chemical formula of an ionic compound by given its name?. Confusion. How many kinds of and numbers of does one compound have? How many charge does one atom has?. Concept. Octet Rule

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The Periodic Table

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Investigative Science

Investigative Science. 12/2/11 Ionic and Covalent Bonding. 2 Types of Bonds. Forces that hold groups of atoms together and make them function as a compound. Ionic bonds: Transfer of electrons Involves a metal and a nonmetal Covalent bonds: Sharing of electrons Involves two nonmetals.

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Bonding Basics

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