PPT-Valence Electrons

Activity Fold your periodic table so that the f and d blocks are looped Determine the number of valence electrons for each remaining group column Find the pattern Valence Electrons Valence electrons. 21. Which of the trends below describe atomic radius, ionization energy, and electron affinity?. A. B. C. Increases. Increases. Increases. Increases. Increases. Increases. Ionization energy, Electron Affinity, Electronegativity. Review. Electrons are the negatively charged part of the atom. Electrons are found in . orbitals. around the nucleus. We write the electron configuration of the element to see the different . orbitals. Electrons:. ELECTRONS AVAILABLE FOR BONDING . Ga. . Standards. Students . know . how to use the periodic table to determine the number of electrons available for bonding. .. . Students know . how to draw Lewis dot structures.. What is a valence electron?. The electrons in the last shell or energy level. These determine how an atom behaves, reactivity, bonding. These are the only electrons we need to worry about from now on. What is a Valence Electron?. Valence electrons. are the electrons in the outer shell . that bond with other atoms. What is a Valence Electron?. Valence electrons. are the electrons in the outer shell . Christopherson. Missing alien. Aliens. . Introduction to . Periodicity. Your Mission. NASA has recently found life on a nearby planet!. These aliens have many similarities and differences and NASA is in need of a way to organize these life forms.. DO NOW. Pick . up your paperwork. Pick up two handouts. Get out Electron Configuration Notes, your Blank Periodic Table, and your green periodic table.. RULES. Aufbau. Principle. Each electron occupies the lowest energy orbital available. Electrons are added from the ground state up. Electrons fill in increasing energy order.. Bonding . Basics. And REVIEW!. Bonding is an example of a . chemical. change. Bonding occurs when . 2 or more atoms. . are chemically joined . When 2 or more atoms bond that is called a . molecule. Chemical Reactivity. The reactivity of an element depends on the number of . valence electrons. .. If . the outer shell . of an atom already . contains . 8 valence electrons. , this means . the atom has . th. , 2018. Pre-Class:. Get your periodic table. Tell me some patterns you see. . They can be obvious…. Places to Look. : Atomic number, atomic mass. Things to Guess. : Atomic “size,” nuclear charge, location of metals, gases, liquids?. Bell work for November 25, 2018. Directions-Many Scientific words, such as . bond. , also have everyday meanings. Use context clues to write your own definition for each meaning of the word . bond. . 4.2. Main Group Elements A. The main group elements are group A elements: 1-8, and they do not include the transition metals or the rare earth elements (lanthanides and the actinides).. Following the Octet Rule. Atomic number = Total number of electrons. The group number tells you the amount of valence electrons an element has.. The metals are on the left side of the periodic table. The nonmetals are on the right side of the periodic table. . Semiconductors and their properties. Materials used for electronic components . . Like resistors. Like capacitors. Like diodes. Like transistors. Like inductors. Semiconductor materials. Conductivity lies between conductor and insulator.