different. When H₂O is combined a liquid is formed whereas H₂S forms a gas. What is meant by the electronic structure of an atom? This describes how the electrons are organized around the nucleus of an atom. The protons and electrons of an atom both have an electrical charge. While a proton has a positive charge‚ an electron has a negative charge and when
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Electrical and What it is The work of an Automotive Service Technician also known as a Mechanic has changed from normal mechanical repair to a high knowledge and very technical job. Today‚ integrated electronic systems and complex computers run and maintain vehicles. They also measure their performance while on the road and can adjust to certain conditions. Technicians must have a good base of knowledge about how vehicles components work and interact‚ as well as the capability to work with electronic
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Notes & Lesson Check 4.3 Atoms are composed of protons‚ neutrons‚ and electrons Protons and Neutrons make up the nucleus Electrons surround the nucleus Number of neutrons = (protons & neutrons) mass number – atomic number #26 – 28 are key points 26. What distinguishes the atoms of one element form the atoms of another? Elements are different because they contain different numbers of protons. 27. How do the isotopes of a given element differ from one another? Isotopes of an element
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The element of Nickel is number 28 which means it has 28 electrons and 28 protons (this is the atomic number). The atomic mass of Nickel is 58.71 g.mol^-1 which means that there are 30.69334 neutrons since you subtract the number of protons from the atomic mass to get the number of neutrons. The electronegativity of Nickel is 1.8 on the Pauling scale; this is the tendency of Nickel to attract a bonding pair of electrons. The density of Nickel is 8.9 g.com^-3 at 20°C and the melting point is 1454
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1. Electron is a negatively charged particle present in an ----------. (a) Atom (b) Proton (c) Neutron (d) None of the above 2. The formula 2n2 determines the____________ that can be accommodated in any level. (a) Electrons (b) Atoms (c) Neutrons (c) Protons 3. __________ are used to get a strong magnetic field. (a) Superconductors (b) Semiconductors (c) Magnetic field (d) None of the above 4. -----------------are used in heating elements‚ precision instruments‚ incandescent lamps‚ and motor
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when an alpha or beta particle is emitted from an unstable nucleus. When a nucleus disintegrates and emits an alpha particle it is alpha decay‚ the alpha particle emitted contains two protons and two neutrons which is equivalent to a helium nucleus being released. Alpha decay occurs because there are too many protons‚ which causes excessive repulsion within the nucleus‚ and in an attempt to reduce the repulsion the helium nucleus will be emitted from the atom. The helium nucleus is constantly colliding
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(Aladdin) Baba and the Forty Thieves‚ from which this name comes from as well. Sesame is an apparatus for accelerating subatomic particles to high velocities by means of electric or electromagnetic fields. This basically increases the speed and energy of protons‚ electrons‚ or other atomic particles‚ and directs them at atomic nuclei or other particles to cause high-energy collisions. Sesame will be used by researchers to study everything from viruses and new drugs to the workings of a star and the understanding
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I was assigned was the element Manganese. The symbol for manganese is Mn. It is number 25 on the periodic table. That means it has 25 protons and electrons even on mars or anywhere you go it will have the same protons and electrons. The atomic number would also be 25. It has 30 neutrons also in in the nucleus. The melting point for Manganese would be 1519 K (1246°C or 2275°F). The boiling point would be 1519 K (1246°C or 2275°F) according to http://education.jlab.org/. It also could be 1245.0 °C
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Atoms make up everything around us‚ including ourselves. They consist of protons which give off a positive charge‚ electrons which give off a negative charge and neutrons which have no charge. In an atom there are the same amount of protons as there are electrons. If there weren’t it would cause the atom to behave differently. Atoms have layers around them called shells which contain electrons. Each shell can only hold a certain amount of electrons. Molecules can be multiple atoms of the same element
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The goal of this experiment was to synthesize dibenzalacetone by aldol synthesis. The name ’Aldol synthesis’ was taken from the words ’aldehyde and alcohol’. This is because the product of this reaction contains both an aldehyde and alcohol. The carbon-carbon bond-forming reaction is referred to as aldol addition. An aldol condensation yields many species of products if the reactant is more than one. Therefore‚ the aldehyde has to react with itself to yield one product. Procedure: Followed according
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