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Physical Science 2015 Semester 1 Final Exam Study Guide Use the following questions to guide your preparation for the final exam. 1) What are three different types of graphs? Sketch an example of each. 2) In which step of the scientific method is information obtained through the senses? 3) What happens when the data in an investigation do not support the original hypothesis? 4) What is the most important safety rule? 5) Which of the following is an example of a safe laboratory procedure? 6) How is 0.00069 written in scientific notation? 7) Know the conversion factors needed to change 18 kilometers to meters? 8) How many inches are 6 centimeters equal to? 9) On the Celsius scale, at what temperature does water boil? 10) Approximately how many kelvins are equal to 60°F? 11) The type of graph used to show how a part of something relates to the whole? 12) What is the relationship in which the ratio of the manipulated variable and the responding variable is constant? 13) How do scientists who speak different languages make their data understandable to one another? 14) The Greek philosopher Democritus coined what word for a tiny piece of matter that cannot be divided? 15) Democritus thought that matter was made of tiny particles of what? 16) According to John Dalton’s observations, when elements combine in a compound, what occurs? 17) What are the main ideas of John Dalton’s atomic theory? 18) J. J. Thomson’s experiments provided what evidence about an atom? 19) In Rutherford’s gold foil experiment what caused the alpha particles to change direction? 20) What evidence did Rutherford’s gold foil experiment provided evidence for about atomic theory? 21) Who provided evidence for the existence of a nucleus in an atom? 22) In an atomic model that includes a nucleus, positively charged particles are located where? 23) Compare and contrast Rutherford’s, Thomson’s, and Dalton’s models of the atom. 24) Which subatomic particle has a negative charge? 25) Which subatomic particle has a positive charge? 26) Which subatomic particle has no charge? 27) Which number of subatomic particles is unique for any given element? 28) The number of protons in one atom of an element is that element’s? 29) To find the number of neutrons in an atom, you would subtract which values? 30) Suppose an atom has a mass number of 23. Which statement is true beyond any doubt? 31) Compare and contrast the number of sub-atomic particles in oxygen-17 and oxygen-18. 32) How do electrons move in Niels Bohr’s model of the atom? 33) What can you assume has happened if an electron moves to a higher energy level? 34) How was Bohr’s atomic model similar to Rutherford’s model? 35) How are electrons arranged in Bohr’s atomic model? 36) What do scientists use to predict the locations of electrons in atoms? 37) What does the electron cloud model describe? 38) Identify the groups and periods of the periodic table. 39) Moving from left to right across a row of the periodic table, which of the following values increases by exactly one from element to element? 40) What is the unit for atomic mass? 41) What is the standard on which the atomic mass unit is based? 42) Compare and contrast the general qualities of metals, non-metals, and metalloids. 43) Identify metals, non-metals, and metalloids on the periodic table. 44) Identify the qualities shared by group members of each periodic table group 1A -8A. 45) Atoms of the most reactive elements tend to have what kind of electron configuration? 46) As you move from left to right across a period, how does the number of valence electrons change? 47) The tendency of an element to react is closely related to what quality? 48) A member of the boron family has three valence electrons, while a member of the nitrogen family has how many valence electrons?