Radium

Introduction – As the human population is growing, there is the need to produce more energy to fill everybody’s needs and also try to keep the environment undestroyed and stop the climate change. One of the solutions to this problem was found in the science of atomic radiation, atomic change and nuclear fission, which was developed between 1895 to 1945, where most of the of the development happened in the last six years of that period and the focus at the time was at the atomic bombs ("History…

decay being β (beta) particles. Actinon has a very short half-life of around 3 seconds and is only present in around 0.7% of natural uranium. 222Rn (radon) is the main radon isotope of concern. It occurs as a product of the radioactive decay of solid radium (226Ra) which is derived from the decay of uranium-238 series. Uranium-238 has a half-life of 3.82 days and provides about 50% the total radiation dose of an average person. Of that near 50%, 38.1% is said to be from the inhalation of radon…

The story is the predictably simple one of an in-valid Vincent (Hawke) bucking the system to fulfil his romantic dream of space travel. Gattaca (pronounced gat-a-ka), is the name of the corporation that can put him on a rocket to Titan, Saturn's 14th moon. The twist: in order to escape the system Vincent must first fool it by posing as Jerome (Law), genetically perfect but crippled by an accident, so now bitter and willing to sell his bodily fluid, and tissue samples to allow Vincent to pass the…

Topic 1: Chemical bonding 1.True or False: An Ion is when an atom gains or loses an electron. 2.What is a Cation? An ion with a (+) charge. 3.True or False: An Anion does not have a (-) charge. 4.What type of bonding transfers electrons? Ionic bonding 5.What are all the types of chemical bonds? Ionic, Covalent, and Metallic bonding. 6.What do you call an element that has different forms . Isotopes 7.Which type of bonding is the “strongest”? Ionic bonding 8.True or False: Ionic bonds are formed…

I am a childhood cancer survivor. At five and half years old I was diagnosed with Acute Lymphoblastic Leukemia, and my entire life was derailed from the path it was on. I was removed from my school to endure chemotherapy, repeated kindergarten, and felt like an outsider at only the age of five. I was in remission within six weeks, and have been in remission for thirteen years now with minimal side effects. After everything that I endured cancer changed everything for me my academics,…

objects. She said that radioactivity was an atomic property and knew it had to be in some elements. She actually invented the word radioactivity after her studies. She discovered two new elements in search of radioactive objects. These elements were radium and polonium, which was named after Poland. Marie has numerous awards and is recognized across the science community for numerous things. Marie was the first woman to win a nobel prize. She actually won two, which also made her the first…

enter the house and allow the stale air to exit. The effects of VOCs can also be lowered by minimalizing exposure to these compounds. An example of a VOC is methanol, a substance which is toxic if ingested because it metabolises to form Formaldehyde (CH_2 O). Methanol (CH_3 OH) is most commonly found in products such as cigarettes as well as in foods or drinks containing aspartame, an artificial sweetener. Formaldehyde is another toxic VOC which can cause the development of cancer. Formaldehyde…

Alpha (α) Radiation The alpha radiations particles have 2 protons and 2 neutrons which are in a helium nucleus. As the alpha particles emit the helium nucleus the nucleus gives away the two protons and two neutrons. As a result of this the mass number will reduce by 4 and the atomic number will result in reducing by 2. This is known as alpha decay. One source of alpha radiation could be plutonium 239. The alpha particles have many characteristics. First of all the alpha radiation has a helium…

tissues. History of the technology: The term 'brachytherapy' is derived from the Greek word for ‘short,’ (brachy) which refers to the, “distance between the therapeutic agent and the target lesion.” Commonly used to treat accessible tumours with radium New sources, techniques, technology and physician/ patient exposure Accepted as a useful treatment option Brachytherapy was the brainchild of Alexander Graham, describing the concept of inserting a radioactive source into the prostate as…

Lawrence Kohlberg Research Paper Lawrence Kohlberg is a psychologist that explored how an individual develops moral reasoning. Through his career he started as a developmental psychologist and then moved to moral education, where he focused more on ethics, linguistics, anthropology, and cognitive psychology. His well-known contribution to psychology is his stages of moral development, where he formulated his own theory through Piaget’s previous work. The theory was to explain the basic…