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P ATTERNS IN THE P ERIODIC T ABLE
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E LEMENT P OSTER P ROJECT ItemLocation Name of Element (spelling!)Top half of page Atomic NumberTop Left Corner Mass NumberTop Right Corner # protons and # neutronsYour choice Electron ConfigurationBottom of page # Valence ElectronsYour Choice Lewis Dot DiagramYour Choice
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E LEMENT P OSTER P ROJECT - E XAMPLE ItemLocation Name of Element (spelling!) Top half of page Atomic NumberTop Left Corner Mass NumberTop Right Corner # protons and # neutrons Your choice Electron Configuration Bottom of page # Valence Electrons Your Choice Electron Dot Diagram Your Choice Bromine 3579.90 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 5 Protons 35 Neutrons 45 Valence Electrons 7 :Br:
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P ATTERNS IN THE P ERIODIC T ABLE 1) Are the elements arranged in order of increasing atomic number or atomic weight (mass number) ? They are in order by atomic number. In the 5 th period of the PToE:
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P ATTERNS IN THE P ERIODIC T ABLE What is the same about each period (row)? Same highest energy level Ex) Row 2 all have 2 s, 2 p
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P ATTERNS IN THE P ERIODIC T ABLE What is the same about each group (column)? Same highest orbital Ex) Column 13 all end in p 1
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P ATTERNS IN THE P ERIODIC T ABLE What is the same about each group (column)? Same dots in Lewis Dot Diagram Same number of valence electrons
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P ATTERNS IN THE P ERIODIC T ABLE Vocabulary: Period – a horizontal row of elements in the PToE - they have the same highest energy level Group – a vertical column of elements in the PToE For the s- and p-blocks, they have the same: - end electron configuration - number of valence electrons - dots in Lewis dot diagram - chemical properties
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P ATTERNS OF G ROUPS Column12131415161718 Valence e - 12345678 End e - Configuration s1s1 s2s2 p1p1 p2p2 p3p3 p4p4 p5p5 p6p6
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