Proton

On March 6, 1716, crowds of people gathered in the streets of England to gaze up at the sky in marvel of the vibrant streams of light that danced across the night sky – an unexplained phenomenon at the time (Fara 1996). This was the first time English astronomer Edmund Halley witnessed this display. This experience led him to publish the first detailed description of what is now commonly known as the “aurora” (P. Brekke and Broms 2013; Bone 2007) (include pic of his drawings). The theories that…

3A.2.10 Robustness A method is robust if it is unaffected by small changes in operating conditions. To evaluate the robustness of developed analytical method few parameters were deliberately changed. The parameters included analysis at different temperatures viz. 250C and 300C, at 0.8 and 1.0 mL/min flow rate, using C18 columns from different manufacturers one from Qualisil BDS, USA (4.6 x 250 mm x5µ) and the other from LC-GC, India (4.6 x 250mm x5µ). Each of the three selected factors were…

Review of Stacking Interactions of Nucleobases: NMR Investigations by H. Sapper and W. Lohmann Introduction Nuclear magnetic resonance (NMR) spectroscopy is often a very useful tool to identify organic molecules based on the atomic nuclei interactions with their environment. Recent advances have made use of the technology in protein, nucleic acid, and complex natural products structure identification. [1, 2, 3] Its origins lie in the works of Felix Bloch and Edward Purcell, who used the…

Grade 9 Term 2 Science Assessment: Electromagnets Lab Report sheet Name: Greg Gerald Class: 9A Date: December 3 2015 Group Member: Dennis I. Research Question How did the amount of volt affect the strength of the electromagnets? Reason I wanted to know if an electromagnet can be strengthen even more through the increase of its energy. II. Introduction: What is electromagnet? Electromagnet is a magnet that runs on electricity. Electromagnet is created when a copper wire…

concentration lies at 4 to 11 GBq/ml. Cyclotron produced radioiodines Iodine-123 represents widely used cyclotron-produced radioisotope for single-photon emission computed tomography (SPECT). Nuclear reaction which yields Iodine-123 directly via proton bombardment of tellurium targets in a cyclotron with subsequent separation of this radioiodine from the irradiated target represents most commonly utilized…

dense particles, and when they go supernova at the end of their life, gold can be formed from the amazing pressure and temperatures. Unfortunately, it does not create the matter itself, and it messes with the arrangement of electrons, neutrons and protons instead. We currently believe that all matter originated from the Big Bang, and was destroyed by a near equal amount of antimatter, which would have caused the expansion. Antimatter is also viewed as a possible fuel source that could help us go…

1. FRQ #1 a. test variety B 22 C (4.2-0)/ (60-0) = .07 test variety B 8 C (2.8-0)/ (60-0) = .046 test variety A 22 C (2.4-0)/ (60-0) = .04 test variety A 8 C (.45-0)/ (60-0) = .0075 b. Metabolism is the breakdown of foods to provide energy for the body. Breaking down the foods use cellular respiration which requires glucose and oxygen and produces carbon dioxide. The faster the metabolism, the more cellular respiration will occur which causes an increase in oxygen to be consumed. The…

Phosphorus is the fifteenth element on the periodic table. It has fifteen protons, sixteen neutrons, and fifteen electrons. It has a mass number of 30.97 and an atomic number of fifteen. Its element symbol is “P.” Phosphorus was discovered by Hennig Brandt in Hamburg in the year 1669. Hennig evaporated urine and heated the residue left behind until it was red hot. This was where the phosphorus vapor was distilled, which he then collected by condensing it into water. Hennig kept his discovery a…

What four elements make up 96% of all living matter? _________________________________________ Concept 2.2 An element’s properties depend on the structure of its atoms 2. Below is a model of an atom of helium, correctly label the electrons, protons, neutrons, and atomic nucleus. 3. What is the atomic number of helium? _________ Its atomic mass? ________ 4. Consider this entry in the periodic table for carbon. What is the atomic mass? ______ atomic number? _______ How many…

Water exists in all three physical states only on planet earth, the only planet where life exists in the whole of universe. Water supports life on earth due its unique physical properties such as density, temperature variation, reflectivity, surface tension, specific heat, boiling and freezing points, as well as its chemical properties including its polar nature, dissolving ability and capacity to act both as an acid or base. The exceptional physical properties are all attributed to water’s…