Alpha particle

Decent Essays
Improved Essays
Superior Essays
Great Essays
Brilliant Essays
    Page 12 of 22 - About 220 Essays
  • Improved Essays

    The definition of honor is to regard with great respect and high esteem. My view of honor is respectfulness towards others, and putting others before you. I believe that an honorable person is Ernest Rutherford because of his important scientific contributions in the early 20th Century. Some of the things he did in order to become such an honorable person was by receiving the Nobel Prize in Chemistry in 1908, and being knighted in 1914 (Ernest Rutherford). Ernest Rutherford was known as the…

    • 611 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Alpha Amylase Experiment

    • 2365 Words
    • 10 Pages

    An Investigation into the Activity of Alpha-amylase Enzyme in Relation to Temperature and PH Introduction: The role of amylase in plants is the breakdown of starches so that they can be used as energy in the first stages of early growth (wise geek, [B] 2016). Enzymes are extremely efficient natural catalysts that are found in cells, they work by lowering the activation energy of a reaction and providing an alternative reaction pathway. Enzymes are very specific, only catalysing certain reactions…

    • 2365 Words
    • 10 Pages
    Superior Essays
  • Improved Essays

    Elements above the atomic number 95 are produced in a particle accelerator by accelerating a small charged nuclei (such as Helium, Boron or Carbon) in a particle accelerator to combine with a heavy nucleus (often of a previously made transuranic element) target. The transuranic elements have short half-lives as the atomic number increases. The smaller nuclei combines within the target nucleus, creating a new unstable nuclide or radioactive isotope. The high speeds are required to overcome the…

    • 1526 Words
    • 7 Pages
    Improved Essays
  • Improved Essays

    Theory Essay Even as long ago as 400 BCE people began to believe in the atomic theory. The first step in discovering the atomic theory took place in the late 1800’s with John Dalton an ancient Greek. The mass number is the same number of particles in the nucleus, which is sometimes referred to as Dalton (DA). (Book) Democritus stated that all matter was made up of atoms, which he called atomos. (Early Ideas Prezi) Aristotle seemed to disagree with him. Democritus said that atoms moved…

    • 812 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    He stated that an atom has a positively charged core and negatively charged particles within the core. He created the Plum Pudding model to represent the positive core and the negative pieces within it. Another philosopher created their own model of an atom. This man was born in 1871 and his name was Ernest Rutherford and he created…

    • 484 Words
    • 2 Pages
    Improved Essays
  • Great Essays

    Heat Conduction Theory

    • 1748 Words
    • 7 Pages

    represents the energy loss at the particle surface due to the collisions with the surrounding gas molecules. There is no simple theory to explain the cooling mechanism of the particles. During the laser pulse, the particle achieves the peak temperature and emit thermal signal. After the laser pulse duration, the particle starts to cool down. The cooling of the particles is characterized by a decay function. The decay of LII signal provides information about the primary particle size and size…

    • 1748 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    the longest time. He was born on 6 September 1766 and died on 27 July 1844. Let get to our main topic, what contribution did he make to the atomic model and our understanding of atoms? Dalton atomic theory stated that element are consisted of tiny particle called atoms. It said an element is one of a kind (pure substance) because all atoms in an element are identical. Every atom that makes up the element have the same mass, but all the elements are different from each other because they have…

    • 1003 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Uranium 235

    • 463 Words
    • 2 Pages

    Because all uranium isotopes are primarily alpha emitters, they are only hazardous if ingested or inhaled. However, because several of the radioactive uranium decay products are gamma emitters, workers in the vicinity of large quantities of uranium in storage or in a processing facility can also…

    • 463 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    project ( “James Chadwick” ). James Chadwick contributed to the Atomic Theory be discovering the Neutron. When he was playing around with the Beryllium atoms and alpha particles an unknown radiation was formed. James thought that the radiation was charged a a neutral electric charge and the approximate amount of a proton. The particle found by James Chadwick was now given the name Neutron. After this discovery a element from the periodic table now had a better model of itself(“ Development…

    • 434 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    It takes in close-up information for temperatures, rocks, soil, mineralogy, and structure for terrain. It also collected magnetic dust particles. The Spirit Nasa Rover was also used for removing weathered rock surfaces and exposing fresh material for examination. The Spirit Nasa Rover Explored the surface of mars. Its twin Opportunity was sent at the same time and explored the other side…

    • 456 Words
    • 2 Pages
    Improved Essays
  • Page 1 9 10 11 12 13 14 15 16 22