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Name__________________________ Hr.___ Study Guide Matter: Building Blocks of the Universe Test consists of Multiple Choice, filling in charts with missing data and short answer. You should be prepared to answer questions on these topics. * Know the key people in the history of the atom and their contribution to our understanding of the atom. These should be in your lab book conclusion for shoe box atoms. * Know the atomic particles: electron, neutron, and proton. where are they in the atom? What is their charge? What is their mass? How are electrons arranged in the electron cloud? * Know the four forces in the atom: strong, electromagnetic, weak, & gravity What are each of the forces responsible for? * Know that Mendeleev used patterns when arranging his periodic table: chemical and physical properties increasing atomic mass * Know that metals are: malleable luster- shine ductile tend to lose electrons found on the left side of table * Know that nonmetals are: on the right side of the table tend to gain electrons have between 5 6 7 8 valence electrons brittle little to no luster * Know that alkali very active 1 valence * Know that transition metals can conduct heat and electricity may be brightly colored Matter: Building Blocks of the Universe Chapter 4 & 5 Study Guide Name__________________________ Hr.___ * Know that Noble Gases have full outside energy levels do not react with other elements * Know that Halogens have 7 valence electrons are active nonmetals usually combined w/ other elements * Know that there is a difference between fission and fusion: fusion- put atoms together with enormous amounts of energy released fission- splitting atoms- energy released- not as much as fusion- may occur in a chain reaction (bomb) or controlled (energy plants) Be able to: Do a simple half life problem: If 100g of a radioactive sample with a half life of 20 years now has only 25 g left, what is the age of the sample? Look at a graph of a radioactive decay series and be able to determine if the sample went through alpha decay or beta decay. Read the axis to determine mass and atomic number. Look at a periodic table and be able to tell which elements are or have: largest metals nonmetals metalloid a certain number of valence electrons. Fill in missing information in a chart about various elements: number of protons, electrons, neutrons number of electrons in each energy level Matter: Building Blocks of the Universe Chapter 4 & 5 Study Guide