Chemical element

Introduction: This was an unannounced office safety inspection of this analytical x-ray registrant, which is located at 1927 Commercial drive, Port Allen, West Baton Rouge Parish, Louisiana. The registrant owns and operates one x-ray fluorescence (XRF) analytical x-ray unit, Thermo Fisher Scientific, model XL3t 980, serial numbers 92731, which is routinely utilized to perform alloy analysis of metals. This is the first inspection of the facility. One area of concern was revealed during the…

Lead, with its chemical symbol Pb, is a common heavy metal often utilized in many things. The chemical itself is toxic, heavy, and poisonous. Its natural form is a soft and malleable metal with blue-gray color. Lead can be man-made or found in nature, most can be obtained from ores. Even though lead is such a common metal on this planet, it only makes up 0.0013% of the Earth’s crust. Lead is easily mined or made by roasting galena in hot air, which is mostly made of lead sulfate. Lead was…

x-rays, while others are used in the production of extremely hard steel for tools, sometimes called tungsten steels. It is also used in the tips of mining drills. From Facts on File in Science Online, tungsten is in chemical compounds such as sodium tungstate. Tungsten is also in chemical compounds to flameproof cloth. Tungsten has no health effects, as it is used in drills. Tungsten also has no known positive or negative effects on any person or animal that comes in contact with…

Lead is an element that naturally occurs in the environment, but much of the lead found in the environment today exists as a result of human activity. When young children are exposed to lead, it can enter the bloodstream and cause a myriad of negative health effects that can affect them for the rest of their lives, as the consequences of lead poisoning are often irreversible (National Center for Healthy Housing, 2008). Based on a child’s level of exposure, they could experience hyperactivity,…

Dmitri Mendeleev is the creator of the first periodic table. Dmitri was born on February 8, 1834, in Verkhnie Aremzyani, Russia to a family of 16. His dad was a teacher, who went blind. His mom ran a glass factory. At the age of 13, his dad died. Dmitri decided to go to college when he was 16. He applied to the same college his dad went to, and was accepted partially because they knew his dad. He studied to become a teacher there. When he was 20, he graduated at the top of his class. Then,…

Mercury Many studies have been performed to acquire specified effects of the toxic metal, Mercury, contaminating our ecosystems. Mercury is a toxic metal that can be fatal to human-beings and animals. Over the past years, many researchers have sampled water and different fishes to examine the concentrations of inorganic mercury. It has been studied that Mercury gets into the environment multiple ways. “Globally, approximately 6600 metric tons of Hg are emitted to the atmosphere annually, with…

Periodic Table of the Elements My elephant drawing represents potassium. I drew a banana because they are high in potassium. I also drew water (h2o) which is very violent when it hits potassium (k). The elephant itself represents element potassium. The red color of the elephant symbolizes it being burnt from the water. When water hits potassium it creates a massive explosion resulting in the elephant being wounded. The elephant undergoes a lot of corrosive reactions. The ionization decreases…

purpose of Mendeleev’s lab is to observe the physical characteristics and properties of common elements. In addition, observe arrangements and trends on the periodic table. Finally, the main goal is to draw conclusions and identify the locations of unknown elements based on given trends and properties. Through observing characteristics and trends, one is introduced to reading the periodic table and its elements, based on how it is arranged. Dmitri Mendeleev was a Russian scientist who is…

Lead (Pb) is one of an important contaminant surrounding our environment. Lead occur naturally in all soil and water (1), or can be found deep within the ground located in ore (2). Although lead can be found in small quantities, there is a great quantity of lead flow in the environment that is detrimental to human beings and plants. However, despite lead is a toxic metal, there are still lots of households products contains lead; burning of paper products, discarded rubber, battery casings, and…

Atomic theory developed 2,500 years ago and evolved around the question whether or not something could be divided into forever. Greek philosophers debated this subject a lot, especially one name Democritus. He believed that something would only be able to be divided to a certain point because matter consisted of atoms and atoms are indestructible. Aristotle, however did believe something could be divided forever and did not believe in atoms. With all this controversy, one would expect an atom…