Barium

atomic mass of 37 and a natural abundance of 25%. The average atomic mass or nuclear charge equates to 35.5. Both of the isotopes have the same atomic number. (BBC Bitesize. Atoms and the periodic table. 2014) Gold: Au, Arsenic: As, Molybdenum: Mo, Barium: Ba, Lead: Pb, Niobium: Nb, Technetium: Tc, Rhodium: Rh, Scandium: Sc TASK 6 The periodic table distinguishes metals from nonmetals, as the metals are present on the left hand side of the…

The Identification of an Unknown Substance Using a Series of Tests Project 2 Chemistry 111 – 552 Peyton Farmer*, Primary Author Partners: Jacob Hicks and Abigail Boudreau TA: Ming Uei Hung Introduction The purpose of this experiment was to use elimination and confirmation tests for both cations and anions, which then allowed the unknown substance to be identified by using logic trees of known solutions. Some qualitative characteristics of chemicals such as the formation of a precipitate, the…

Scientists that i truly admire I have two scientists who I admire Thomas Alva Edison and Humphry Davy. Thomas Alva Edison is one of the best investors; Thomas Alva Edison was conceived in 1847 out of a residential community in Ohio. His instructors thought he was a moderate student, so his mom showed him herself, moving his enthusiasm for science. In 1869, subsequent to moving to New York, he enhanced a machine called the 'ticker'. It was utilized for handing-off data about the share trading…

Since ancient Greece, humanity has become fascinated with science. The development of new technologies that will further the existence of mankind, has been the goal for many great scientists. Through centuries of experimenting, the mid-evil era of alchemy, and many years after, Chemistry became a topic of much importance. During the 1800’s, science had become one of the most rapidly growing fields as explanations for how things work, or the technological progression allowing us to discover more.…

Water, something so basic and essential to sustaining life is taken advantage by many people. People don’t realize or care to know where or how their water is obtained until a big tragedy occurs. Because of this, the whole state of drinking water in the USA today is a crisis. Usually, we only make a decision based off of what we know from the surface and not the actual truth or core of it. I believe that us Americans should really think and be concerned about the state of our drinking water…

Recyclyng Ltd (n.d., p3-7) says that lead is poisonous to the kidneys, where in a long time it will influence the apprehensive and conceptive frameworks, it also affected kids mental impropment, where there is a posibelity that make kids mental disabled. Barium is one of the dangerous component, which produces mind swelling, it might cause a shortcoming ib the muscles, heart, liver and spleen. Hexavalent also harms the kidneys, liver, DNA, and it cause a asthmatic bronchitis. The most dangerous…

Similar to strong acids, strong bases are also good conductors of electricity due to their large concentration of ions. Examples of strong bases are calcium hydroxide and barium hydroxide. Weak bases produce a very low concentration of hydroxide ions, and thus, are poor conductors of electricity. Ammonia and ethylamine are examples of weak bases. As shown in the reaction below, the position of equilibrium gives the reactants…

Colon Polyps What is colon adenomatous polyp? Polyps develop in the cells of glandular structures lining the colon and are typically not cancerous. However, the colon adenomatous polyp is different. This polyp’s growth is a result of DNA changes in the lining of the colon. If ignored, there is a high chance that it will turn cancerous. Individuals with multiple polyps have a higher chance of one of them turning cancerous. 70 to 80 percent of patients survive at least five years if these…

are: orally, rectally, or intravenously. After an imaging exam with contrast material has been done, the substance is absorbed by the body or excreted through the urine or feces. There are numerous kinds of contrast materials, Iodine-composed and barium-sulfate mixtures are used in x-ray and CT imaging exams. Contrast substances can have a chemical structure that contains iodine, an organically occurring chemical element. These contrast substances can be injected into veins or arteries,…

system, and rarely the skeletal system. These types of tissues are considered a thicker tissue and harder structures which only CAT scans can produce an accurate image compared to MRI. The practice includes a person drinking concoctions of iodine, barium, or receiving intravenous contrast dyes, then lying inside of a CAT machine and waiting for the scanner to process the cross sectioned images taken through x-ray bursts. Each of the concoctions or dyes stand out in because of the use of…