William Ramsay William Ramsay was born on the second of October‚ in the year 1852. William‚ and his parents‚ William and Catherine‚ lived in Glasgow‚ Scotland. William Ramsay performed his work in his native town‚ until 1870 when he went to Tübingen and earned his doctorate in 1872. When returned to Scotland later that year‚ he became an assistant chemist at the Anderson College in Glasgow. Eight years later‚ he was appointed principal and professor of chemistry at London University‚ which
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member of the nitrogen family has _____ 12. Which of the following Group 1A elements is the most reactive? _____ 13. At room temperature‚ none of the metals are _____ 14. Group 7A of the periodic table contains the _____ 15. Mendeleev arranged the known chemical elements in a table according to increasing _____ 16. The atomic mass of an element is _____ 17. In the periodic table‚ a set of properties repeat from _____ 18. Which halogen is the most reactive?
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Argon (Ar) is a noble gas found in Group 0 on the periodic table. It gets its name because of its chemical inertness and comes from the Greek root ‘Argo‚’ which means lazy. This is because Argon doesn’t react well with other elements. The atomic number of Argon is 18 making it a member of the helium group of elements which are also called noble‚ or inert‚ gasses and are non reactive. Its electronic configuration is: 1s2 2s2 2p6 3s2 3p6 The outermost shell‚ shell number three‚ has a completely
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Microbiology Lecture Exam #1 Outline Chapter 1: Microbiology Introduction I. Microbiology Definition II. History of Microbiology (Christian Gram‚ Robert Koch‚ Antony van Leeuwenhoek‚ Robert Hook‚ Edward Jenner‚ Louis Pasteur‚ Elie Metchnikoff‚ Dmitri Iwanowski‚ Paul Ehrlich‚ Alexander Fleming) II. Scope of Microbiology A. Infectious Agents 1. Prions 2. Viroids 3. Viruses B. Prokaryotes - Bacteria
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Chapters 11 12 Periodic Table Name __________________ ( ) Class __________ Date _________ History of the Periodic Table Russian chemist Dmitri Ivanovich Mendeleev 1834-1907 Arranged elements in order of increasing atomic masses Elements with similar chemical properties fall into the same vertical column Such an arrangement is the Periodic Table The Periodic Table The Periodic Table is a list of elements arranged in order of ______________ _____________ (__________) ____________. Groups
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The Life and Music of Dimitri Shostakovich: INTRODUCTION: Dimitri Shostakovich was born in 1906 in St. Petersburg‚ Russia. Within the space of sixty-nine years‚ Shostakovich made an unforgettable impact on music and became one of the most important composers of the 20th century. During his career he wrote fifteen symphonies‚ fifteen string quartets‚ six concerti and two operas along with many chamber works‚ piano works and pieces for theatre and film. This is an incredible output for a composer
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The Periodic Properties of Atoms The Periodic Table: In the 1870’s‚ the Russian chemist Mendeleev developed the periodic table‚ based upon the relationship between the atomic weights of the elements and their chemical properties. As one ascends from lightest to heaviest elements‚ there is a periodic recurrence of chemical properties. For example‚ the elements with atomic numbers 2‚ 10‚ 18‚ 36‚ 54‚ and 86 all are chemically inert (the noble gases)‚ while those with atomic numbers one greater 3‚ 11
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Timeline of materials technology BC • 29‚000–25‚000 BC – First pottery appears • 3rd millennium BC – Copper metallurgy is invented and copper is used for ornamentation • 2nd millennium BC – Bronze is used for weapons and armour • 16th century BC – The Hittites develop crude iron metallurgy • 13th century BC – Invention of steel when iron and charcoal are combined properly • 10th century BC – Glass production begins in ancient Near East • 1st millennium BC – Pewter beginning to be used in
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Chemistry Equipment Symbols 1. Test Tube 2. Boiling Tube 3. Beaker 4. Conical Flask 5. Test Tube Holder/ Tongs /Clamp Stand 6. Measuring/Graduating 7. Funnel 8. Pipette Cylinder 9. Spatula 10. Tripod 11. Bunsen Burner 12. Glass Bulb 13. Burette 16. Condenser Pipette Changes of State Filtering Solutions 03-Nov
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Comparison and Contrast: "The Lady with the Pet Dog" Have you ever read a story and wondered if it would be different with a different point of view. Well with the story “The Lady with the Pet Dog” by Anton Chekhov and Joyce Carol Oates‚ we get a different point of view from both authors. Though there are similarities and differences in both stories the purpose of them only becomes clear when the two stories are read and compared. There are tons of differences that we could focus on but‚ we are
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