And The (Nobel) Award Goes To… Ernest Rutherford was born at Spring Grove near Nelson‚ New Zealand to a farmer named James Rutherford and his wife Martha Thompson. James had immigrated to New Zealand from Perth‚ Scotland to raise a home and a family. Ernest studied at Havelock School then Nelson College where he was studying when he won a scholarship to study at Canterbury College‚ the University of New Zealand. After gaining his Bachelor of Arts‚ Master of Arts‚ and Bachelor of Science Ernest
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Grades K-5 Pencil Electrolysis Introduction: The process by which we separate the elements hydrogen and oxygen from water is called electrolysis. The word "lysis" means to dissolve or break apart‚ so the word "electrolysis" literally means to break something apart (in this case water) using electricity. It is difficult to break up water into it’s elements lots of energy is needed to do that. Through a chemical means though‚ we can separate the compound of water into the elements that combine to
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The element (einsteinium) has the atomic symbol of Es. Its atomic number is 99 while its atomic mass is 252. Einsteinium is located in period 7 of the periodic table as a part of the actinide series. It has 99 protons‚ 99 electrons‚ and 153 neutrons in its atoms. The physical appearance of einsteinium is not known‚ but it is predicted to be metallic and silvery white or grey. Einsteinium is classified as a metal and is a solid at room temperature. It has a melting point of 860°C and an atomic radius
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and energy are given off from the decaying nucleus. * α and β radiation is in the form of particles * γ radiation is in the form of waves-kind of like light but higher frequency . Nuclear Decay * Alpha particles consist of two protons and two neutrons‚ identical to the nucleus of a helium atom. * A sheet of paper or a person’s surface layer of skin will stop them. * Alpha particles are only considered hazardous to a person’s health if they are ingested or inhaled and
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Moseley’s law provided a reasonably complete experimental set of data supporting Ernest Rutherford/Antonius Van den Broek concept of the atom‚ in which atomic number is understood as representing physically exactly the number of positive charges (protons) in a central atomic nucleus Conclusion * Because of Moseley’s work‚ the modern periodic table is based on the atomic numbers of the elements. * law states that the frequency fкα of the Kα‚ lines in X-ray emission spectra from elements
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All atoms are electrically neutral i.e. they have the same amounts of negative and positive charge inside them. The electrons carry negative charge and the protons carry positive charge. The basic unit of charge (called the elementary charge)‚ is the amount of charge carried by one electron. The charge on a single electron is qe = 1‚ 6x10−19 C. All other charges in the universe consist of an integer multiple of this charge (i.e. Q = nqe). This is known as charge quantisation. All the matter
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PEST Analysis of Proton Political If we are going to check on the high selling prices of the national cars of Malaysia because of high production costs and lack of vendor efficiency‚ there is a big possibility that the local market will be ruled by imported cars. As a result‚ there will be increase in the number of the vehicles on the road and there will be a glut of used cars in the market‚ because people will tend to trade their cars for cheaper and imported brands (Frost & Sullivan 2002). On
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Although Joseph John (J.J.) Thomson (1856 - 1940) was mainly a physicist‚ his discoveries are closely connected to the chemical community. Thomson used Crookes high vacuum cathode ray tube in his discovery of electrons. He found the green beam produced by the cathode ray tube was a completely negatively charged material. Experimenting with different electrically charged plates and magnets in the cathode ray tube and observing the deflection of the rays he had enough evidence to say that particles
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Harriet Brooks was born on January 1‚ 1876 in Exeter‚ Ontario‚ Canada. She attended McGill University where she earned her bachelor’s degree in natural philosophy and mathematics in 1898. After graduating‚ Brooks began working with a research team headed by Ernest Rutherford at Mcgill (Hicks). She started working with electricity and magnetism for two years. She also was a tutor at Royal Victoria College. Brook’s interest in the sciences influenced her to get a master’s degree in physics in 1901
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Introduction: Every muscle has lactic acid.According to many people Lactic acid is nasty stuff produced in our muscles during exercise‚ cause soreness‚ muscle fatigue‚ does not contribute to exercise performance‚ muscle does not use it for fuel‚ and better athletes makes less of it. But they all are wrong or in other words they are a lay. Instead Lactate acid is made of Lactate ion called (Lactate) and Hydrogen Ion. C3H6O3----->C3H5O3++H- C2H3OHCOOH--------->C2H3OHCOO+ +H- Hydrogen ion is the acid
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