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Using the Periodic Table
Jan 17, 2016
Using the Periodic Table. 47 Ag 108. 19 K 39. Atomic # ____ Mass # ____ # p+ ____ # n ____ # e- ____. Atomic # ____ Mass # ____ # p+ ____ # n ____ # e- ____. 10 Na 20. Atomic # ____ Mass # ____ # p+ ____ # n ____ # e- ____. Atoms. What element is this? - PowerPoint PPT Presentation
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Using the Periodic Table
19
K 39
47
Ag 108
10
Na 20
Atomic # ____Mass # ____# p+ ____# n ____# e- ____
Atomic # ____Mass # ____# p+ ____# n ____# e- ____
Atomic # ____Mass # ____# p+ ____# n ____# e- ____
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What element is this?
How can you tell?
Atoms
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Atoms• Valence electrons
– electrons in the outer most shell– the electrons that react with other elements– stable, unreactive element has 8 valence electrons
(Noble gases)• Bonding
- Ionic - Exchange electrons- Metal + nonmetal
- Covalent- Share electrons- Nonmetal + nonmetal
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Ionic Bonding
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Covalent Bonding
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Strong Acid Weak AcidHigh H+ ions
neutral
Weak Base Strong Base High OH- ions
pH Scale
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9
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Dehydration Synthesis
Glucose + Glucose Sucrose
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12
13
14
Phospholipid
15
Steroids
16
Proteins
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Primary Structurea.a. chainsex: glyc-ser-glu-phe-leu-asn
Secondary Structure3D shape showing H+ bondsbeta sheet or alpha helix
Tertiary Structure3D shape showing R group interaction
Quaternary Structure2+ peptide chains linked globularlyex: Hb
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Hemoglobin(Transports O2 throughout circulatory system)
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Nucleic Acids
20
Nitrogenous Bases
RNA only DNA only
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