Topic 4 - Bonding 4.1 Ionic bonds 4.1.1 Ionic bond: +ve (cations) and -ve (anions) ions are attracted to each other and form a continuous ionic lattice 4.1.2 Group 1 metals form +1 ions‚ group 2 metals form +2 ions‚ metals in group 3 form +3 ions . Examples : Li+‚ Mg2+‚ Al3+. Greater ease of ionisation Li->Cs is due to the increased electron shielding of the nuclear attraction caused by additional inner shells of electrons. The easier atoms are to ionise‚ the more reactive they
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Many people take risks in their lives. The decisions people make in their lives can be life threatening. Several people have made the decision in their lives to scale the highest peak on this planet‚ Mount Everest. Of those people‚ only about 4‚000 people have successfully climbed Mount Everest. If humans know Mount Everest is hazardous then why do they risk their lives for a personal goal? There are rescue services around the Mountain to help and or save them from their own decision. Rescue helicopters
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ammonia‚ acetyl acetone and chloride ions. Ligand has active lone pairs of electrons in the outer energy level. These are used to form co-ordinate bonds with the metal ion. All ligands are lone pair donors. In other words‚ all ligands function as Lewis bases. Lewis acid-base theory reminders: A base is an electron pair donor and an acid is an electron pair acceptor. Ligands like water‚ can donate a pair of non-bonding electrons (lone pair) into a vacant orbital of a central metal ion and so dative
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In either case‚ the dawn of a zombie age would represent the end of the world as we know it. It would change the very fabric of humanity and the world we live in. There are many stories that could be used to illustrate the potential reactions of lone survivors as well as
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Cited: "List of Texas Natural Resources." Travel Tips. N.p.‚ n.d. Web. 07 Oct. 2012. . "Texas State Nickname - The Lone Star State." Texas State Nickname - The Lone Star State. N.p.‚ n.d. Web. 07 Oct. 2012. . BrainyQuote. Xplore‚ n.d. Web. 07 Oct. 2012. .
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Rush” was written and directed by Charlie Chaplin in 1925. Some of the main characters included Charlie Chaplin as The Lone Prospector‚ Mack Swain as Big Jim‚ Tom Murray as Black Larsen‚ Malcolm Waite as Jack‚ Georgia Hale as Georgia‚ and Henry Bergman as Hank. The movie is set in the 1920’s time period‚ the same period it was filmed in. The Gold Rush is a story about The Lone Prospector (Charlie) in search of gold. Through his travels in the snow‚ he comes upon a cabin. In the cabin he meets
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Accounting Concepts: Balance Sheet Chapter 2 Basic Accounting Concepts: Income Statement Chapter 3 Accounting Records and System Chapter 4 Nov. 10 3 Maynard Company (A) Case 2 – 1 Music Mart‚ Inc. Case 2 – 2 Lone Pine Café (A) Case 2 – 3 Maynard Company (B) Case 3 – 1 Lone Pine Café (B) Case 3 – 2
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gorgeous state of California. We loved going to Yosemite National Park to enjoy our lives. According to the establisher of this park‚ John Muir‚ “It is by far the grandest of all the special temples of nature I was permitted to.” I asked the park ranger how many acres of land is Yosemite made of. He said 748‚036 acres. Yosemite is definitely a national treasure. There is soaring cliffs‚ huge waterfalls‚ and vast meadows inside the territory of Yosemite. There are many activities you can do. President
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Family Structure of Great Britain Many countries have experienced very significant changes in patterns of family formation and family structure. Great Britain is one of the countries where these changes have been particularly marked‚ with the result that British families have become less stable and more diverse. The roles of women and men within the family have also changed‚ especially for women with children‚ who are now very likely to be combining paid employment with domestic and care work
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The new right perspective comes from a group of thinkers who mainly share the same values and ideas‚ from the conservative government. These thinkers believe that the nuclear family is the ideal family in society‚ and therefore is the bedrock of society. The views of the new right are in keeping with the functionalist views. The new right thinkers are opposed to many things in modern society‚ such as the decline of the nuclear family‚ and the rise in the numbers of couples that now cohabite and the
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