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Nuclear Fission:
Splitting the Atom You know that atoms are made up of a nucleus and electrons moving around the nucleus, and the nucleus is made up of protons and neutrons. The principal actor in the fission drama is the uranium atom. The nucleus of the Uranium 238 atom has 92 protons and 146 neutrons. About one atom in 140 atoms of uranium has 143 neutrons in its nucleus. lt is called Uranium 235. It is the Uranium 235 that is mostly used to provide fuel for nuclear furneces. Before the Second World War, two German scientists discovered that if neutrons were shot at the nuclei of Uranium 235, the nuclei split into two and produced other neutrons to repeat the process. This is called nuclear fission.
Explain the Emergency Contraceptive Pill (ECP) method The ECP method or "morning after pill" uses a high dose of combined oral contraceptives (OCs) to prevent conception. The O
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1. Describe the properties of water that make if invaluable to life as we know it. 2. Explain why the versatility of carbon is essential to life. 3. Describe the
Amphoteric : Amino acids having the characteristics of an acid and a base.
Question 1 Define Epidemiology and describe in detail about Disease frequency, Disease distribution and Disease determinants Question 2 Write a short note on mortality data a
INTRODUCTION : In this unit, we introduce you to the fundamental of personal safety code in a laboratory. If you do not have safe laboratory practice, your life and those of your
Ventures in Space: Sometimes the atmospheric conditions distort the light or radiowaves coming in from space. For instance, there may be a storm disturbing the radiowaves. O
Severe Bleeding In case of severe bleeding, use the following steps: (1) Control bleeding by the following means: (a) Apply direct pressure on the wound for 5-15 minute
Age Related Differences in Erythropoiesis 1. During intrauterine life, in the early embryo, erythropoiesis occurs in the mesoderm (the middle of the three germ layers of an emb
is pencil translucent or opaque?
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