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An atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus, which contains positively charged protons and neutral neutrons, surrounded by negatively charged electrons that orbit the nucleus. The number of protons in an atom’s nucleus determines its atomic number and its chemical properties, while the number of neutrons can vary and affect its atomic mass. Atoms combine to form molecules, which make up all matter.

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  1. 1
    The fundamental nature of matter
    Words • 826
    Pages • 4

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    Paper Type:800 Word Essay Examples
    The first atomic theory Postulations regarding the fundamental nature of matter have been undertaken for millennia, but it was around 400 BC that Greek philosopher Democritus laid down the first atomic theory - and for a philosopher more than 2000 years ago, he was surprisingly close. Democritus wrote that all things are composed of minute, indivisible, indestructible particles of pure matter, which move forever in empty space. What has followed since has effectively been the refinement and proof of this…
    AtomAtomic TheoryChemistryNaturePhysicsScience
  2. 2
    The Evolution of Atomic Understanding
    Words • 598
    Pages • 3

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    Paper Type:450 Word Essay Examples
    Over the course of several centuries, the field of science has undergone remarkable advancements, significantly enhancing our comprehension of the intricate nature of the world we inhabit. Among the pivotal discoveries, the atom stands as a cornerstone, its evolving history marked by a series of revelations that have continually reshaped our perception of the fundamental building blocks of matter. John Dalton's Atomic Theory: Foundations and Limitations In the early 1800s, John Dalton laid the groundwork for atomic theory, proposing radical…
    AtomAtomic TheoryHistory
  3. 3
    Evolution of Atomic Understanding: Thomson to Mass Spectrometry
    Words • 540
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    Paper Type:500 Word Essay Examples
    The electron was the first particle to be discovered by J J Thomson, who was looking into passing an electric current through gases. At the positive end of the tube a glow was visible. This glow could be deflected by both electric and magnetic fields, suggesting that there were rays of negative particles travelling from the cathode to the anode. These particles are obviously electrons. Thomson went on to suggest that atoms were like plum puddings with negative electrons embedded…
    AtomChemistryNaturePhysics
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  4. 4
    Investigation to see if the length of any type of wire affects its resistance
    Words • 1769
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    Paper Type:1800 Word Essay Examples
    Resistance is a force. It opposes the flow of an electric current around a circuit. A circuit itself can resist the flow of particles if the wires are either very thin or very long. E.g. the filament across an electric bulb is very thin, as it needs to resist the flow of particles so that the bulb can glow. Resistance is measured in ohms. This discovery was made by George Ohm. He found out that the voltage of a circuit…
    AtomChemistryElectricityPhysics
  5. 5
    Ernest Rutherford, Physicist
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    Paper Type:1200 Word Essay Examples
    Ernest Rutherford was one of the most famous physicists of the early 20th century. He won the Nobel Prize in chemistry in 1908 for his work on atomic emissions and his contributions that led to the discovery of atomic fission. Ernest Rutherford was born in Nelson, New Zealand on August 30, 1871. His father was James Rutherford and his Mother was Martha Thompson. His father was a wheelwright, a person who builds and repairs wheels. His mother was a proper…
    AtomChemistryPhysicsScienceScientist
  6. 6
    Determination of the relative atomic mass of magnesium by back titration
    Words • 1136
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    Paper Type:1200 Word Essay Examples
    In this following experiment, we are aiming to determine the relative atomic mass of magnesium, using a process known as 'back titration'. The basic outlines of this experiment include a strip of magnesium being allowed to reach with excess hydrochloric acid. The excess acid is then determined by titration with a standard alkali (Sodium Hydroxide) and hence the moles of acid that reacted with the magnesium is found by difference. This can be used to determine the number of mole…
    AtomTitration
  7. 7
    Characteristics of Ohmic and Non Ohmic Conductors
    Words • 1465
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    Paper Type:1400 Word Essay Examples
    Every part of matter is made up of atoms. Atoms are called the building blocks of nature. These atoms consist of a nucleus and shells. The protons and neutrons are part of the nucleus and the electrons are distributed in shells around the nucleus. The protons have a positive charge, neutrons are not charged and the electrons are negatively charged. Electrons have no overall mass while neutrons and protons both have a mass of 1 unit. This is how the…
    AtomChemistry
  8. 8
    Brief History of the atom model
    Words • 2516
    Pages • 10

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    Paper Type:2500 Word Essay Examples
    The roots of atomic theory can be traced back over 2000 years ago to the ancient Greeks. The Greeks were responsible for many advancements in civilization, but one of the things that drove them was the question of origin. Who are we? What are we made of? Where did we come from? These questions were not limited to humans, but to all matter in the world. Around 400 BC a philosopher named Democritus proposed a theory of composition of matter.…
    AtomAtomic TheoryChemistryHistoryLightPhysics
  9. 9
    Atomic Force Microscope Operating in Parallel
    Words • 1873
    Pages • 7

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    Paper Type:1800 Word Essay Examples
    Abstract Atomic force microscopy (AFM) has advanced to be one in every of the foremost powerful tools for the characterization of material surfaces particularly on the nanoscale. It is a vital Nano instrument technique for several applications such as cell biology and nanoelectronics metrology and inspection. The utilization of a single AFM instrument is understood for its very low speed and not appropriate for scanning massive areas, leading to very-low-throughput measurement. Parallelizing AFM instruments will be presented to overcome those…
    AtomChemistryMaterialsTechnology
  10. 10
    Day 7For the seventh day we had a lecture by engineers We
    Words • 2261
    Pages • 9

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    Paper Type:2500 Word Essay Examples
    Day 7.For the seventh day, we had a lecture by engineers. We learned from him that Oil Rocks is exploited with two deposits( Neft Dashlari and Palciq Pilpilesi), there are 514 wells now and 492 of them are active, 21 of them are not active, just one well is at the appropriation stage, and the average amount of oil extracted from one well is about 5.5 tonnes. Furthermore, we knew that there are seven oilfields and just two of them…
    AtomChemistryEngineerMaterialsNaturePhysics
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  11. 11
    History of the Magnetic Resonance Imaging
    Words • 2218
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    Paper Type:2500 Word Essay Examples
    Back in 1882, the 26-year-old Serbian American inventor and engineer Nikola Tesla discovered about rotating magnetic fields (Hunt, 2018). Little did he know that just 130 years later, his discovery would be the foundation for a powerful medical diagnostic tool that has saved millions of lives called Magnetic Resonance Imaging (MRI). Today, more than 3 million scans are made every year just in England which comprises less than 1% of the world's population (NHS, 2018). In 1930, Isidor Isaac Rabi…
    AtomChemistryHistoryPhysics
  12. 12
    Gorgeous Invention – Firework
    Words • 1429
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    Paper Type:1300 Word Essay Examples
    Boom! Pop! Sizzle! When their gazes were fixed on the streams of red, yellow, green and blue that fell lazily from the sky, the crowds below were astonished by this fantastic scene. It was Fourth of July, as known as Independence Day, which is one of the most essential national holidays in America. Thousands of people gathered from all over the country to watch and be amazed by the wonder of fireworks. Fireworks have been around for centuries and play…
    Air PollutionAtomChemistryInventionLightMaterials
  13. 13
    Decoding Periodic Table Trends: Atomic Properties Unveiled
    Words • 645
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    When you consider a periodic table, you think of aspects like oxygen, neon, lead, and iron. You may even believe of numbers, rows, and columns. You may not think of trends that are taking place throughout a periodic table. There are several trends that go on in a periodic table. The patterns that I am going to be explaining throughout this paper are atomic mass, atomic radius, first ionization energy, and electronegativity. When you study a normal/ordinary table of elements,…
    AtomPeriodPhysics
  14. 14
    The Controversial Decision to Drop Atomic Bombs
    Words • 2785
    Pages • 11

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    Paper Type:3000 Word Essay Examples
    In August 1945, Japan experienced a major change as it was hit by two American atomic bombs. On August 6th, the Enola Guy released the atomic bomb "Little Boy" over Hiroshima, causing an immediate death toll of 80,000 and resulting in an additional 60,000 injuries within six months. Just three days later, on August 9th, Nagasaki was targeted with another atomic bomb which caused approximately 70,000 fatalities.The utilization of atomic bombs during World War II remains a subject of intense…
    AtomAtomic BombJapan CountryWar
  15. 15
    Short Summary Essay on the Big Bang
    Words • 478
    Pages • 2

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    Paper Type:450 Word Essay Examples
    The Big Bang theory is today's dominant scientific theory about the origin of the universe. It states that the universe was created from an infinitely hot and dense subatomic ball, which once exploded not only created energy and matter, but space and time itself. This is estimated to have happened around 14 billion years ago. 300,000 years after the big bang took place the plasma of elementary particles had cooled to 3000K, during which atoms began to form as electrons…
    AtomBig bang theoryLightUniverse
  16. 16
    The Devastating Fallout of the 1945 Atomic Bombings in Japan
    Words • 524
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    Paper Type:600 Word Essay Examples
    During the final stages of World War II, the United States made the controversial decision to drop atomic bombs on the Japanese cities of Hiroshima and Nagasaki in August of 1945. This action has been the subject of much debate and controversy over the years, with many questioning the necessity and morality of using such devastating weapons. However, it is important to understand the context and reasoning behind the decision to use the atomic bombs. One of the main arguments…
    AtomAtomic BombInternational Relations
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