The Big Bang Theory: The Creation Of The Universe

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Our world is made of elements and combinations of elements called compounds. An element is a pure substance made of atoms that are all of the same type. At this given time, 116 elements are known, and roughly about 90 of these occur naturally. But how do we know what elements are in our universe?, Scientists have developed many theories as to why and how we know. These theories consist of mainly the Big Bang Theory and how it had created the first and lightest elements in our universe, or Red giants(Dying stars) because as the dying star’s core begins to run out of hydrogen it begins to die and create carbon atoms as a result of it’s death, another piece of evidence we have on this topic is supernova’s because star releases a very large amount …show more content…
During the formation and expansion of the universe 13 .7 billion years ago, the big bang only created the lightest and most simple elements such as hydrogen and helium along with trace amounts of lithium and beryllium along side. After only a couple of minutes it had cooled enough for protons and neutrons to combine into a nuclei, this is known as the time of nucleosynthesis which is the cosmic formation of atoms more complex than the hydrogen atom itself. Hundreds of millions of years later in nebula, A cloud of cosmic gases, the hydrogen gas clouds merge and, under gravity, form protostars in which started the process of creating stars which in turn started to form the heavier elements on the periodic table. Nuclear fusion processes begin converting hydrogen into helium. They were formed during the cooling of the big bang and as it began to cool down rapidly stars began to form and the elements found in nature were created in nuclear reactions in these stars and in huge stellar explosions known as a supernova. As you can see from the diagram below It has proven everything I have said such as it had created the lightest elements after quarks had clump into protons and neutrons and later electrons combined with protons and neutrons to form the first and the lightest elements including Hydrogen and …show more content…
He is known for his work on the Periodic Law and the creation of the very first periodic table. Mendeleev dedicated many years of his life to collecting information about all the 63 elements that had been discovered during his time. Mendeleev had noticed that there were groups of different elements with very similar atomic masses and other chemical properties. Mendeleev had created the periodic law which is a law stating that the elements, when listed in order of their atomic numbers, fall into recurring groups, so that elements with similar properties occur at regular intervals. Mendeleev was then able to arrange the elements on the periodic table by the increasing atomic mass he even left gaps in the very first periodic table he created for the elements that had yet to be discovered as shown in the graph below. Mendeleev had devised this diagram based on the gaps in the atomic masses of all the known elements at the time and had made calculations to leave blanks within his theory for other scientists to add in elements that will be discovered later

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