Alpha particle

How threatening it might sound, nuclear medicine is a very common type of treatment, as “On average, one in every two Australians can expect at some stage of his or her life to undergo a nuclear medicine procedure,” (Australian Nuclear Science and Technology Organization). It may come as a surprise, but these include Nuclear Imaging such as MRI (Magnetic Resonance Imaging), Pet scans, CT (Computerized Tomography) CAT (Computerized Axial Tomography). And no it is not A green liquid in a capsule…

an important coronary heart disease (CHD) risk factor. Even in hypertriglyceridemic models, however, most of the total plasma apo-β is associated with LDL, making apo-β a good surrogate for LDL particle concentration. The larger apo-β carrying particles may be less atherogenic than the smaller LDL particles, suggesting that specific measurement of apo-β might be a better predictor of heart diseases [38]. The protective effect of soy and sesame against elevation of cardiac disease biomarkers may…

Today we might know an atom being the smallest piece of an element that represent an element, but you might not know the whole story. It all being in 1803, when a curious guy, known as John Dalton, who proposed an “atomic theory” with spherical solid atoms based upon measurable properties of mass. Later on Dalton introduced his belief that atoms of different elements could be universally distinguished based on their varying atomic weights. John Dalton's research not only changed the face of…

The nuclear model of the atom consists of mostly empty space, the center of the atom is called the nucleus, the nucleus contains the protons, which have a positive electric charge, along with the neutrons, which have a neutral charge and is slightly heavier in mass when compared to a proton. Along the outer rings of the atom the electrons orbit, the electrons have a negative electric charge, as well as the smallest mass out of the three. “The nuclear forces” is a common name used to describe the…

An atom is a basic unit of an element. For thousands of years, people have been questioning about these tiny particles and have came up with many theories based around it. Though many people believe atomic theories started with John Dalton around the late 1700s or early 1800s. This is not true as the atomic theories started sometime during 300 or 400 B.C. with the philosopher, Democritus, being one of the first to come up with a theory about atoms. Democritus’ theory gave the basics of an atom;…

Using his research and along with other scientists of that time, he proposed a new theory that they called the Quantum theory. This theory said that electrons were not particles or waves, but instead they contained properties of both and neither. In other words, it said that the position of the subatomic particle could only be described as a probability. This probable position would be located along one of the four orbitals. When this theory was drawn into a model which was named the Cloud…

Worth The Risk? Pros and Cons of Nuclear Chemistry in Medicine Nuclear chemistry, along with its advantages, has many cons such as extended decay periods, emission of radioactive particles into the atmosphere, and negative side effects from its many medical uses. Radioactive particles vary in strength, alpha particles, for example, are able to pass through sheet of paper. On the other hand, gamma rays are about to pass through solid lead (6 inches) or concrete (6 feet). By analyzing the human…

Alchemists used to obsess over chrysopoeia, the transmutation of regular metals, such as copper, into gold. However, they were not aware at the time that copper and gold were two different atomic elements and instead believed them to be compounds. Thinking these metals could be changed chemically or physically in labs, alchemists pursued this dream to no advantage. Although it is not possible to change ordinary metals to gold through chemical reactions, physical reactions, radioactive decay, or…

space are neutrons and protons that constantly jiggle. Neutrons are uncharged particles that add mass to the nucleus without adding a charge. The protons are positively charged particles that are also located in the nucleus and symbolized as p+. The second part of an atom is the electron cloud. The electron cloud is a cloud of electron which surrounds the nucleus. The electrons are the third type of subatomic particle- along with protons and neutrons. Located outside of the nucleus,…

that all matter is composed of discrete units called atoms. The Atomic Theory started in about 400 BCE with a scientist by the name of Democritus. Democritus proposed the idea of the existence of an ultimate particle. He called this particle atomos when he was describing it, because the particle was too small to cut. Next, we get to Leucippus. Leucippus was the man who founded atomism, which is a theoretical approach that states nature consists of two principles, which are atom and void. After…