The Atomic Structure Atoms contain electrons which travel along electron shells‚ surrounding the nucleus that contains nucleons such as protons and neutrons. Electrons‚ neutrons and protons all make up an atom‚ they are called sub-atomic particles. Protons – has a relative charge of 1+ and a relative atomic mass of 1 Neutrons – are neutral‚ therefore the charge is 0. Also has a R.A.M of 1 Electrons – has a negative charge (1- )‚ and has a R.A.M of 1/2000
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The Big Bang Theory What is the Big Bang Theory? The Big Bang is the dominant (and highly supported) theory of the origin of the universe. In essence‚ this theory states that the universe began from an initial point or singularity which has expanded over billions of years to form the universe as we now know it. In 1959 a survey was conducted of scientists across America concerning their understanding of the physical sciences. One particular question asked “What is your concept of the age of
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Study Guide GEOL 1500 test #1 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What are the basic differences between the disciplines of physical and historical geology?|1)| A) physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past B) physical geology involves the study of rock strata‚ fossils‚ and deposition in relation
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nucleus made up of neutrons and protons‚ and electrons moving extremely fast around the nucleus‚ forming an electron cloud instead of moving in orbits like what Bohr’s model suggests - proposed by Erwin Schrodinger in 1926‚ when he derived this model using a mathematical equation that he himself made http://1.bp.blogspot.com/-LEqGPr4h8R4/TsgJyT6vP6I/AAAAAAAAAKE/pTl6O3V2u0M/s200/electron_cloud_model.jpg The Planetary/Bohr’s Model - an atom is comprised of a nucleus made up of neutrons with a neutral
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the distinct forms that different phases of matter take on. Four states of matter are observable in everyday life: solid‚ liquid‚ gas‚ and plasma. Further states are possible but do not naturally occur in our environment: Bose–Einstein condensates‚ neutron stars. Other states‚ such as quark-gluon plasmas‚ are believed to be possible. For a complete list of all exotic states of matter‚ see the list of states of matter. Historically‚ the distinction is made based on qualitative differences in properties
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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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however‚ are ever changed into atoms of another element as a result of a chemical reaction. Important changes were revised from his theory like his atoms are indivisible which is wrong since atoms can be divided into subatomic particles like Protons‚Neutrons‚ and Electrons. Next‚ is his theory that Atoms of all elements are the same‚ this is proven wrong by the discovery of isotopes. Lastly‚ his theory that elements can’t be transformed into other elements‚ which is also proven wrong
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in this list that can be seen with an ordinary desk microscope? 1. 2. 3. 4. Cells. Cell nucleus. Atoms. Chain molecules‚ such as proteins. Atoms In our model of scale‚ remember that the BB represented an atom. Electrons Hydrogen Helium Neutrons Protons As a class‚ identify the atoms represented here and label the sub-atomic particles. Carbon OxygenPhosphorous Calcium What elements are represented here? Use the Periodic Table on the wall to identify these atoms. What does the term “valence
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basic unity of an element which still retains the elements properties · Atomic number: the unique number of protons in the nucleus of a particular element · Isotope: Atoms of the same element which contain a different number of neutrons · Periodic law: The chemical and physical properties of the elements repeat in a regular‚ periodic pattern when they are arranged according to their atomic number. · Periodic trend: a pattern that is evident when elements are
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the electron cloud (contains very light‚ moving particles) Subatomic particles: 1.Protons (found in the central nucleus) 2.neutrons (found in the central nucleus) 3.electrons (spin rapidly in a cloud around the central nucleus) 2) How does the Atomic Mass # differ from the Atomic #? The mass # is determined by adding together the number of protons and neutrons in the nucleus. The atomic # itself is what defines the element and also represents the number of protons in the nucleus. 3) What
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