Many Asian countries such as Singapore‚ HK‚ and South Korea have achieved tremendous economic growth in the last forty years of development. One of the key success factors has been macroeconomic stability in these countries. Multiplier effect --- population Talk aboit the characteristic of Asian countries-past 40 years –deveoping country –vast raw material 1 Economic growth is defined as an increased in the level of production of goods and services by a country over a certain period of time
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“The main threat to the stability of the Weimar Republic in the period of 1919 to 1923 came from the political violence of the extreme right.” How far do you agree with this judgement? The period of 1919 to 1923 saw numerous factors threaten the stability of the Weimar Republic. The political violence from both the left and right wing parties‚ the weakness of the Weimar Constituion itself and the economic issues such as hyperinflation all posed as threats to the stability of the Republic. However
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After the First World War many countries were left in unstable conditions. Infrastructures were in flux‚ economies were in isolation‚ and exchange rates were volatile especially in the 1930 ’s. Alongside these prevailing conditions‚ an increasing number of governments enforced restrictive trade policies. As a result‚ the United States in conjunction with Great Britain in the 1940 ’s created proposals for the design of a new financial institution that would control exchange rates and strengthen international
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Unit 1 Key Questions Lesson 1 1. One argument against continuing research on the atom is that the cost continues to increase at an alarming rate‚ and the benefits seem to be declining. Whereas quantum chemistry experiments as early as 80 years ago were very cheap and yielded considerable practical results‚ now very few if any practical results are emerging‚ but the costs of experiments continues to increase. On the other hand
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alloy over the soft pure metal. Thus the Nb-Zr alloy became the replacement for pure niobium in applications requiring the chemical resistance of niobium and a material with a high melting temperature. Because of the increasing need for better strengths and the advance of new technologies‚ Nb-Zr has been replaced by alloys such as C-103‚ which has greater strength and thus improved reliability‚ but still retains all the desirable characteristics of Nb-Zr. Although it is now outdated and isn’t used
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niobium-tin superconductors causing a magnetic field to keep the plasma away from the walls of the vacuum vessel. Astrid Standaert 1 Nuclear fission Introduction One of the most common reactions in nuclear fission is the attack of an 235U atom by a neutron. The result of this collision is that the uranium splits in 91Kr‚ 142Ba and 3 neutrons and energy is released‚ see Figure 1. Figure 1: Typical nuclear fission reaction Other reaction products are also possible. These energy is then
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1 1 The nucleus of one of the isotopes of nickel is represented by 60 Ni. 28 Which line in the table correctly describes a neutral atom of this isotope? number of protons A B C D 28 28 60 60 number of neutrons 32 60 28 32 number of orbital electrons 28 28 28 32 2 A nucleus of bohrium x Bh decays to mendelevium y emissions. bohrium x Bh → dubnium + α y → lawrencium + α 255 Md 101 by a sequence of three α-particle → mendelevium 255 Md + α 101 How many neutrons are there in a
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RADIOACTIVE in its most common form. Notes The nucleus The nucleus is at the center of the atom and contains the protons and neutrons. Protons and neutrons are collectively known as nucleons. Virtually all the mass of the atom is concentrated in the nucleus‚ because the electrons weigh so little. Working out the numbers of protons and neutrons No of protons = ATOMIC NUMBER of the atom The atomic number is also given the more descriptive name of proton
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Chem Factsheet January 2001 Number 12 Periodicity - Trends in Period 3 To succeed in this topic you need to:• understand the work in Factsheet 1 on Atomic Structure • understand the work in Factsheet 6 on structure of elements and compounds‚ including how bonding relates to physical properties. • be able to use the periodic table to locate the positions of elements. The Periodic Table In the periodic table‚ elements are placed in order of increasing atomic number (fig 1.) The horizontal
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Lanthanides and Actinides The lanthanides and the actinides make up the f block of the periodic table. The lanthanides are the elements produced as the 4f sub level is filled with electrons and the actinides are formed while filling the 5f sub level Some significant similarities and differences between lanthanides and actinides are observed. The two rows that are generally placed underneath the main periodic table are called the lanthanides series and the actinides series. These two rows are produced
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