Orange Station What is electromagnetic force? What is gravitational force? What are the properties of metals? What are the properties of non-metals? What are the properties of metalloids? Elements in the same vertical column are said to be in the same __________ or __________. Look at period 4 on a periodic table. How many elements on this row are metals, nonmetals and metalloids? The force caused by the positive protons being attracted to the negative electrons. The force that depends on an objects mass and distance between it and another object. Metals are shiny, malleable, ductile and good conductors Non metals are dull, brittle and poor conductors – some on the table are gasses Metalloids have some properties of metals and some of nonmetals Family or group 13 metals, 2 metalloids and 3 nonmetals

Red Station Who contributed to the development of the atomic theory? What do the plums or chocolate chips represent in Thomson’s model? What does the word atomos mean? What did Schrodinger call the region where electrons are found? Why is the Bohr model not accepted by scientists today? What is the Modern Atomic Theory? Who determined that there was a dense mass in the center of the atom? What is it called? 1. Democritus, Dalton, Thomson, Rutherford, and Bohr 2. Electrons that are scattered throughout 3. Indivisible 4. Electron cloud 5. Electrons don’t stay anchored in their energy levels 6. Protons and neutrons are in the nucleus and electrons are moving rapidly in the electron cloud 7. Rutherford - nucleus

Blue Station What are the three subatomic particles that the atom is made of? Where are they found in the atom? Which subatomic particle is responsible for the atoms identity? Which subatomic particle in an atom has the least amount of mass? What is the smallest particles into which an element can be divided and still be same substance? Draw a Bohr Model of Lithium What are the charges of the three subatomic particles? How many protons, neutrons, and electrons are in Nitrogen-32 (use your periodic table) 1. Protons – nucleus, electron – electron cloud, neutron – nucleus 2. Proton 3. Electron 4. Atom 5. See above 6. Protons – positive, electron – negative, neutron – neutral 7. Nitrogen has 7 protons and 7 electrons and 25 neutrons

Pink Station What is the difference between a mass number and atomic mass? An atom of oxygen with 8 protons, 8 electrons, and 8 neutrons has a mass number of what? If Hydrogen-3 has 1 proton, how many protons does Hydrogen-2 have? Why? An atom of Silver with 47 protons, 47 electrons, and 103 neutrons has a mass number of what? If an isotope of Uranium, Uranium-215, has 92 protons, how many protons does Uranium-242 have? 1. Mass number is protons plus neutron, atomic mass is the average of all of the masses of the isotopes 2. 16 3. 1 – protons don’t change 4. 150 – protons plus neutrons 5. 92 – protons don’t change

Yellow Station What subatomic particle determines if a particle is an atom or an ion? What subatomic particle determines if a particle is an atom or an isotope? What is a positive ion called? What is a negative ion called? On the periodic table, what tells you the number of protons? What term means a variation that has the same number of protons, but a different number of neutrons? What on the periodic table is the sum of protons and neutrons? Electrons Neutrons Cation Anion Atomic number Isotope Atomic mass or mass number

Brown Station What are the properties of the Halogen group on the periodic table? What are the properties of the Actinides? What groups on the periodic table make up the transition metals? What are properties of the Noble Gas group on the periodic table? How many valence electrons do each of the groups on the periodic table have (ignore groups 3-12)? What is a property of the Alkali metals? Which group contains an element that is necessary for a substance to combust? 7 valence electrons – most reactive nonmetal Radioactive/unstable 3-12 Unreactive, nonmetals Group 1 has 1, group 2 has 2, group 13 has 3, group 14 has 4, group 15 has 5, group 16 has 6, group 17 has 7, group 18 has 8 Most reactive metals – 1 valence electron Oxygen group

Green Station What is the horizontal row on the periodic table called? What do elements in the same period have? Where metals, nonmetals, and metalloids found on the periodic table? What classification are most of the elements on the periodic table? What is the Periodic Law? How did Mendeleev arrange the elements? How is the modern Periodic Table arranged? Period Same number of energy levels Metals on the left of the zigzag line, metalloids on the zigzag line and nonmetals on the right of the zigzag line Metals Properties of elements change periodically with the elements’ atomic numbers increasing atomic mass Increasing atomic number

Purple Station X 1. What is the atomic number of the element marked with an X? 35 2. How many total electrons does element X have? 35 3. What two properties may element X have? 7 valence electrons, very reactive 4. What would element X be classified as? nonmetal 5. What group number is element X in? 17 6. How many valence electrons does element x have? 7 7. How many energy levels does element x have? 4