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Starter: Atomic Particle Copy and complete the following statements with the following terms you will use one of them twice. Protons, Electrons, Neutrons 1. ___ identify the element. 2. ___ have no charge and mass equal to another particle. 3. ___ have a negative charge and basically no mass. 4. ___ have a positive charge and mass equal to another particle.
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Day 55 and 56
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Subatomic Particles Copy the table and fill in the blanks. ParticleProtonElectronNeutron Symboln Relative Charge 1+
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Review Complete the following table for the Bohr model using your periodic table. element name # electrons# protons # neutronsatomic #atomic mass Protons Neutrons Electrons
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Using the periodic table, find the following information: The number of protons for: 1. Aluminum 2. Fluorine 3. Beryllium 4. Neon The symbol for: 1. # 18 2. # 15 3. # 7 4. # 12 The average atomic mass for: 1. Chlorine 2. Argon 3. Calcium 4. Hydrogen The name for: 1. # 2 2. # 5 3. # 14 4. # 19
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Periodic Table Groups Period
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Energy Levels Period = rows (left to right) Period # = # EL (energy levels) Periods 7 periods on Periodic Table 1920212223242526 KCaScTiVCrMnFe
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Valence Electrons Groups = columns (up/down down/up) Groups = chemical properties Group # = # V.E. (valence electrons) Charge of the atom (+ or -) 5B5B 13 Al 31 Ga 49 In 81 Tl
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Periodic Table Trdends
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Family Foldable You will need 3 sheets of legal paper. Fold the paper in half horizontally so that you will have six flaps. Then fold cut the five bottom flaps in half exactly. In the end you should have 10 separate flaps.
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Family Foldable Directions: Each Flap will have one of the following titles in bold. For each title you will write the answer to what is being asked. Group 1: Hydrogen and Alkali Metals Identify hydrogen and alkali metals. List this group’s properties. Group 2: Alkaline Earth Metals Identify the alkaline earth Metals. Describe alkaline Earth metals. Groups 3-12: Transition Metals List properties of transition metals. Metalloids Name the metalloids and their properties. Identify which group each metalloid is in. Group 3: Boron Family Describe the properties of this group Group 4: Carbon Family Describe the properties of this group Group 5: Nitrogen Family Describe the properties of this group Group 6: Oxygen Family Describe the properties of this group Group 7: Halogens Give properties of halogens. Group 8: Noble Gases Describe noble gases. List their properties.
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Alkali Metals Has one valence electron. Extremely reactive, most reactive of all elements. The reactivity increases from top of to the bottom. Softer than group 2 elements. Lower melting and boiling points. Reacts violently with water and oxygen. Oxidizes very fast. Only found in compounds in nature. Hydrogen is NOT a member of this group, it is a non-metal.
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Alkaline Earth Metals Have two valence electrons. Metals in group 2A are harder than metals in group 1A. Higher melting and boiling points than group 1A. Only found in compounds in nature. Less reactive than group 1A metals but more reactive than remaining groups.
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Transition Metals Form compounds with distinctive colors Will have several oxidation numbers Label the columns
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Metalloids Metalloids are elements with properties that fall between those of metals and non-metals. The metalloids in the remaining groups will be colored green. They include: (list them)
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The Boron Family Have three valence electrons. Boron is a metalloid and the remaining elements are metals. Aluminum is strong, lightweight, malleable, and a good conductor of electric current. Aluminum is the most abundant element in the earth’s crust.
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The Carbon Family Group 4A contains a nonmetal (Carbon), two metalloids (silicon and germanium), and two metals (tin and lead). Has four valence electrons. Except for water, most of the compounds in your body contain carbon. Silicon is the second most abundant element in the Earth’s crust. As you go down the family the elements become better conductors.
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The Nitrogen Family Group 5A contains two nonmetals (nitrogen and phosphorous), two metalloids (arsenic and antimony), and one metal (bismuth). Nitrogen is nonmetal gas, phosphorous is a solid nonmetal, and bismuth is a dense metal. Properties vary greatly. Has 5 valence electrons.
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The Oxygen Family (Chalcogens) Group 6A has three nonmetals (oxygen, sulfur, and selenium), and two metalloids (tellurium and polonium). Have six valence electrons. Oxygen is the most abundant element in Earth’s crust.
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The Halogens Has 7 valence electrons. Fluorine and Chlorine are gases, bromine is a liquid that evaporates quickly, and iodine is a solid that sublimes. Despite their physical differences, the halogens have similar chemical properties. They are highly reactive nonmetals, with fluorine being the most reactive and chlorine a close second.
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The Noble Gases Helium has two valence electrons They remaining has eight valence electrons. [8 electrons in the outer shell = Full Helium (He) has only 2 electrons in the outer shell = Full] The noble gases are colorless and odorless and extremely unreactive. Exist as gases Non-metals
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Exit Slip Which particle is NOT found in the nucleus? Proton, neutron, electron, or neither What is the process of changing a liquid to a gas called? Evaporation, condensation, sublimation, neither
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