welcome to the world of chemistry the language of chemistry chemical _____________ -chemical...
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Welcome to the Welcome to the World of World of ChemistryChemistry
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The Language of The Language of ChemistryChemistryThe Language of The Language of ChemistryChemistry• CHEMICAL _____________CHEMICAL _____________ - - – pure substances that cannot be decomposed by pure substances that cannot be decomposed by
ordinary means to other substances.ordinary means to other substances.
SodiumBromine
Aluminum
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The Language of The Language of ChemistryChemistryThe Language of The Language of ChemistryChemistry
• The elements, The elements, their names, and their names, and symbols are given symbols are given on theon the PERIODIC PERIODIC TABLETABLE
• How many How many elements are elements are there?there? 117 elements have been identified117 elements have been identified
• 82 elements occur naturally on Earth82 elements occur naturally on EarthExamples: gold, aluminum, lead, oxygen, carbonExamples: gold, aluminum, lead, oxygen, carbon•35 elements have been created by scientists35 elements have been created by scientistsExamples: technetium, americium, seaborgiumExamples: technetium, americium, seaborgium
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The Periodic TableThe Periodic Table
Dmitri Mendeleev (1834 - 1907)Dmitri Mendeleev (1834 - 1907)
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Glenn Glenn SeaborgSeaborg
(1912-1999)(1912-1999)• Discovered 8 Discovered 8
new elements.new elements.
• Only living Only living person for person for whom an whom an element was element was named.named.
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Branches of Chemistry
• Many major areas of study for Many major areas of study for specializationspecialization
• Several career opportunitiesSeveral career opportunities
• Also used in many other jobsAlso used in many other jobs
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1. Organic Chemistry
• Organic is the study of Organic is the study of matter that contains carbonmatter that contains carbon
• Organic chemists study the Organic chemists study the structure, function, structure, function, synthesis, and identity of synthesis, and identity of carbon compoundscarbon compounds
• Useful in petroleum Useful in petroleum industry, pharmaceuticals, industry, pharmaceuticals, polymerspolymers
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2. Inorganic Chemistry
• Inorganic is the Inorganic is the study of matter that study of matter that does NOT contain does NOT contain carboncarbon
• Inorganic chemists Inorganic chemists study the structure, study the structure, function, synthesis, function, synthesis, and identity of non-and identity of non-carbon compoundscarbon compounds
• Polymers, Polymers, MetallurgyMetallurgy
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3. Biochemistry
• Biochemistry is Biochemistry is the study of the study of chemistry in chemistry in living thingsliving things
• Cross between Cross between biology and biology and chemistrychemistry
• Pharmaceuticals Pharmaceuticals and geneticsand genetics
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4. Physical Chemistry
• Physical Physical chemistry is the chemistry is the physics of physics of chemistry… the chemistry… the forces of matterforces of matter• Much of p-chem Much of p-chem
is computationalis computational• Develop Develop
theoretical ideas theoretical ideas for new for new compoundscompounds
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5. Analytical Chemistry
• Analytical Analytical chemistry is the chemistry is the study of high study of high precision precision measurementmeasurement
• Find composition Find composition and identity of and identity of chemicalschemicals
• Forensics, quality Forensics, quality control, medical control, medical teststests