Period 5 element

Throughout this exhibition, I have created one specific theme—to take you through the technique of gilding and the material of gilt bronze. Gilding or Ormolu is a “decorative technique for applying fine gold leaf or powder to a solid surface such as wood, stone, or metal to give a thin coating of gold.” In this case, the exhibition will revolve around gilt bronze Asian artwork. Let us take a tour through multiple pieces and learn about the gilding technique, and how the material has held up…

The Purpose of Mendeleev’s lab was to try to understand and identify the 9 unknown elements that were given. We had to relate it to Mendeleev’s lab of 1869, using his perspective and his methods. For example , he did things like laying out the elements from lightest to heaviest and by the colors. By studying its physical properties and observing the examples given we could identify the elements that were given. Using his methods really helped me understand his point of view, he used the…

Magnesium is a mineral that can be described in so many different ways. It is almost impossible to name every little thing that magnesium may assist in to help our body function. To start with, magnesium is roughly involved in 300 essential reactions that happen within our body. The adult contains about 25g of magnesium in their body. Magnesium has specific recommended consumption level. If there is not enough magnesium in the body, it can cause multiple problems or illnesses. The same applies…

Radioiodine production Radioiodine is defined as a radioactive isotope of the chemical element Iodine. Although there are at least 37 different Iodine radioisotopes, only four of them are used as tracers or therapeutic agents in medicine; these are 123-I, 124-I, 125-I, and 131-I, with the latter being the most common in clinical practice. Essentially all industrial production of radioiodine isotopes involves four aforementioned radionuclides. History of radioiodine production and usage The…

William Strunk, Jr. and E.B. White recognize many people consider writing difficult, especially when not everyone is practicing it daily. During the introduction of The Elements of Style White claims that often writers struggle to clearly present their ideas, what should be clear and easy to say presents scrambled and frail on paper. For this reason, it is White’s goal to help all aspiring writers to develop their own satisfactory writing style. The text is separated into basic grammar rules,…

When using a 100 mL graduated cylinder marked every 1 mL, there should be one decimal places in each reading. The first decimal place is an estimated because the graduated cylinder is marked for every 1 mL. The final definitive number is in the ones place, so the tenth place should be estimated, as the last digit of measurement is usually estimated. For example, on a 100ml graduated cylinder marked every 1 mL, a sample reading would be 75.6mL, three significant figures, because 75 would be shown…

address relation of Iron with other types of elements and what makes it different from the others. The importance of Iron is immense in this world and there are many reasons for that. Iron is a brittle, hard substance found on the list of transitional metals in the periodic table on group 8 and period four. It is classified as a transitional metal. It is one of the most important elements in chemistry and the world. It is the second most common element after hydrogen. It has immense important as…

A. Significance Copper is one of the most abundant transition metals in the human body and its redox characteristics make copper an important cofactor in many enzymes. Copper containing enzymes are important for tissue generation, synthesis of neurotransmitters, and catalysis of the electron transfer reactions.1 Because of its diverse functions, copper homeostasis deficiency is linked to many diseases. A prominent example is Wilson’s disease with a prevalence of approximately 1 case in 30,000…

How can one element change the world? Well if it is an element like copper then it can change our whole world? Copper allowed for early humans to build new weapons which could help civilizations to win or lose in battle. Copper allowed for the modern revolution thanks to the unique qualities it has that other elements do not. Copper allowed for things such as the telephone to make long distance calls and cell phones which allow us as humans to talk wirelessly to people in another country. It…

Introduction: In this laboratory, free-radical halogenation was used in order to brominate compounds such as toluene, ethylbenzene, isopropylbenzene and t-butylbenzene (structures as seen below). Free-radical halogenation consists of a halogen, connected through sigma bonding, breaking and interacting with the side chain of the aromatic compound. The three steps in the process of halogenation take place in the presence of light and are labeled as initiation, propagation and termination.…