OTHER TYPES OF THE NUCLEAR TECHNOLOGY APPLICATIONS THAT HAVE THE POTENTIAL TO EVOLVE IN SOUTH AFRICA AND WHY THIS WOULD BE FEASIBLE South Africa as a developing country and is one of the world leader in supplying food and raw material. It has very a lot of arable land and large reserves of natural resources. The warm climate favours the production of most crops and livestock which is in demand by the population. The country’s economic backbone lies between the performance of the mining and agricultural
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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 have different numbers of neutrons‚ they also
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Atomic nuclei consist of protons and neutrons‚ which have a positive or negative charge. Electric forces are repulsive between similar charges‚ so there must be a force much stronger than electromagnetism keeping them together. This force is called the Strong Nuclear Force‚ and it is about a hundred times stronger than the electromagnetic force. Its strength allows it to hold a nucleus together‚ despite the desire of the electromagnetic force to thrust it apart. Despite its relative strength‚ the
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Calculate the number of neutrons for the following atoms: a) Aluminum b) Boron c) Magnesium d) Zinc e) Ferum f) Argon Answer:- Mass Number = (Number of Protons) + (Number of Neutrons) a) 26.98 = 13 + Neutrons 26.98 – 13 = Neutrons Neutrons = 13.98 b) 10.81 = 5 + Neutrons 10.81 – 5 = Neutrons Neutrons = 5.81 c) 24.31 = 12 + Neutrons 24.31 – 12 = Neutrons Neutrons = 12.31 d) 65.38 = 30 + Neutrons 65.38 – 30 = Neutrons Neutrons = 35.38 e) 55
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reactors operate on the principle of nuclear fission‚ the process in which a heavy atomic nucleus splits into two smaller fragments. The nuclear fragments are in very excited states and emit neutrons‚ other subatomic particles‚ and photons. The emitted neutrons may then cause new fissions‚ which in turn yield more neutrons‚ and so forth. Such a continuous self-sustaining series of fissions constitutes a fission chain reaction. A large amount of energy is released in this process‚ and this energy is the basis
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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 with the walls of the nucleus and due to its mass and energy it will tunnel out of the nucleus. Alpha reaction Beta decay occurs when there are too many neutrons compared to
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into an entirely different element. Recall that isotopes of an element are atoms that have the same number of protons but different numbers of neutrons in their nuclei. Different elements are distinguished by having different numbers of protons. Recall that isotopes of an element are atoms that have the same number of protons but different numbers of neutrons in their nuclei. Different elements are distinguished by having different numbers of protons. The released energy and matter are collectively
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Topic 1 Part I - Multiple Choice Questions 1 Which two particles have approximately the same mass? (1) proton and neutron (3) neutron and electron (2) proton and electron (4) neutron and positron 2 Which statement is true about a proton and an electron? (1) They have the same masses and the same charges. (2) They have the same masses and different charges. (3) They have different masses and the same charges. (4) They have different masses and different charges. 3 The atomic
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angle of 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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or isotope’s mass number tells how many protons and neutrons in its atoms. ISOTOPES After reading this section you will be able to do the following: * Define an isotope and explain how it is different than an element. The other particle in the nucleus of an atom is the neutron. The neutron has no electrical charge and is said to be neutral. Like protons‚ all neutrons are identical. Do all atoms of an element have the same number of neutrons? The answer to this question is no. The number of
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