over 90o their results revealed the presence of atomic nucleus and led to Rutherfords atomic model.3 FORCE OF THE NUCLEUS The strong nuclear force is an attractive force that acts between all nucleus protons and neutrons alike. Thus protons attract each other via force at the same time they repel each other via the electric force‚ nuclei are bound together by the residual strong force‚ the Mesidual strongforce is minor medium of the strong force which
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Unit 2 Lesson 3 The kinetic theory of matter explains that matter is made up of particles‚ which are in constant motion resulting in the different states of matter. Matter is made of constantly moving particles‚ which tells us how the matter in solids‚ liquids‚ and gases behaves. When molecules bump into each other‚ they do not gain or lose energy‚ they only transfer it‚ so there is no net energy change (law of the conservation of energy). In a solid‚ molecules vibrate in a fixed position
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nuclear force‚ also called the strong interaction. This force acts against the forces of repulsion of protons and binds neutrons and protons to contain them inside the atomic nuclei. This is how the nucleus of the atom is formed. The force is so strong that the minute particle that carries the force is called “gluon‚” which is means “glue” in Latin. The strength of this force is very particular. The protons and electrons are sensitive and have to be specifically arranged and a have the right distance apart
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electron‚ the proton and the neutron. However‚ the hydrogen-1 atom has no neutrons and a positive hydrogen ion has no electrons. The electron is by far the least massive of these particles at 9.11×10−31 kg‚ with a negative electrical charge and a size that is too small to be measured using available techniques.[46] Protons have a positive charge and a mass 1‚836 times that of the electron‚ at 1.6726×10−27 kg‚ although this can be reduced by changes to the energy binding the proton into an atom
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Physics Folio Radioactivity Prepared By : Aniq Danial Bin Saharudin 5 Al – Hasseb Sekolah Menengah Sains Banting Contents No | Contents | Page | 1. | Appreciation | | 2. | Introduction | | 3. | Analysis : - Nucleus Of An Atom - Radioactive Decay - The Uses Of Radioisotopes - Nuclear Energy - The Importance Of Proper Management Radioactive
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matter is made up of atoms and in the centre of the atom‚ there is a nucleus. Within the nucleus‚ there are protons (+) and neutrons (neutral). To find the number of neutrons in an atom‚ you subtract the atomic mass from the atomic number. Atoms of an element can have different amount of neutrons. These are called Isotopes. 19.3 Unstable Nuclei and Radiation Positively charged protons in nuclei tend to repel one another. In order to make the nuclei stable‚ neutrons are present to dilute the forces
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you understand Uranium And be part of the crew The words in Uranium May seem different and scary The boys are called electrons Unlike you‚ me‚ and Larry The girls in Uranium Have a different name as well For they are called protons‚ And it suits them quite swell. After the protons and electrons Grow up and go steady They can go off and get married‚ If they think they are ready After this happens They are called something new For they are now neutrons‚ A combination of the two They then have to move
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up of atoms. All atoms possess a nucleus of positively charged protons as wells and neutrons which are neutrally charged. Surrounding the nucleus is a low density area containing negatively charged electrons that are equal to the number of protons within the nucleus. The number of protons within an atom determines the element that it composes. Every element within the Periodic table is defined by its atomic number (the number of protons in the atom). Elements with an atomic number between 1 and 92
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an atom’s atomic number? The number of protons in the nucleus of an atom determines an element’s atomic number. In other words‚ each element has a unique number that identifies how many protons are in one atom of that element. For example‚ all hydrogen atoms‚ and only hydrogen atoms‚ contain one proton and have an atomic number of 1. All carbon atoms‚ and only carbon atoms‚ contain six protons and have an atomic number of 6. Oxygen atoms contain 8 protons and have an atomic number of 8. The atomic
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Assignment Chapter 2 Concept Explorations 2.25. Average Atomic Mass Part 1: Consider the four identical spheres below‚ each with a mass of 4.00 g. a. Calculate the average mass of a sphere in this sample. (4.00 + 4.00 + 4.00 + 4.00)/4= 16.00/4= 4.00g Part 2: Now consider a sample that consists of four spheres‚ each with a different mass: blue mass is 4.00 g‚ red mass is 3.75 g‚ green mass is 3.00 g‚ and yellow mass is 1.25 g. * a. Calculate the average mass of a sphere in this sample
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