The Elements Essays

In this paper, is the basic information of the dangerous element; plutonium (Pu). Plutonium is a very fascinating element on the periodic table. It is fascinating regarding its toxic potency and involvement in weapons. Which is why I am choosing to do a paper on this element, people need to realize both how dangerous it is, what it is, how it came to be, and what it can do. Plutonium is in the transitional metals section of the periodic table. Plutonium has the atomic number 94 and a molar mass

THE ELEMENT SILICON. The element silicon was named after the latin word for hard stone or flint (silex). It is considered to be the seventh most abundant element in the universe and the second most abundant on the earth, (27.7%) after oxygen. Being a stable tetrahedral, the element is chemically considered to be highly versatile or reactive. Silicon is a tetravelant metalloid of atomic number 14, the element posses the properties of both metals and non-metals. Its chemical symbol is Si and it has

The organization of the periodic table takes account of many different factors. All elements in the table display a periodic trend. Electron configuration and properties also affect the periodic table. The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons. The periodic table depicts atomic radius by configuring them from smallest to largest as you move

Metallic chemical element chemically active, soft white color, symbol Cs, is located in the first group of the periodic table which means that he belongs to a group of alkaline elements. Atomic number 55 and atomic weight 132.905, the melting point of 28.4 degrees Celsius and a boiling point of 671 degrees Celsius and density of 1.87 g / cm 3. Cesium was discovered in 1860 by the German chemist Robert Bunsen, German physicist Gustav Kirchoff during the use of the spectroscope when they analyzed the

The element silver is one of the most fascinating elements on the periodic table. From how it was found, where it was found, and even what its uses are, this element is very interesting. Other elements are worth much more than Silver, but they weren`t one of the first five elements found. The element silver was found in river as small nuggets band also found in large cannonball that have been broken apart. When looking up who found this element it said that no one specific found the element and

Uranium is an element in the actinide series with the element symbol U. It is the 92nd element because of its atomic number of 92. This means it has 92 protons in an atom. Uranium can be found within the the crust, such as in soil, rocks, rivers, and sea water. Uranium is the 51st most abundant element in the Earth’s crust. It is about 500 times more abundant than gold. Uranium undergoes alpha decay, which produces an alpha particle. This is the least dangerous, as uranium is weakly radioactive

interesting element with 40 protons, 40 electrons, and 51 neutrons. It is the 40th element on the periodic table and has the atomic symbol Zr. Its average atomic weight is 91.224. It is found as a bluish powder or as a grayish-white metal. Zirconium was discovered as the oxide Zirconia by Martin Klaproth in 1789. Martin had been one of the first to stray away from the usual chemical analysis of the time, which included removing unknown elements and adjusting the percentages of the known elements so that

present day, where we know and continuously study the smallest molecular structure of anything and everything. It is the study of monumental things like the composition of matter itself, the chemical interactions between everything, from the purest elements to the most complex mixtures, and the adhesive components for all parts of life. Chemistry, in short, is the study of everything. There are many branches of chemistry that spread from physical, to organic, to biochemistry and they all are vital to

The chemical elements are divided into two broad groups, the metals and the non-metals. In this experiment, you will examine some members of the metal group and identify similarities and differences in their physical and chemical properties. Metals are the elements that are found in the left of the periodic table with high electrical and thermal conductivity. Metals lose electrons to create positive ion charges. Metals have a unique shine, are prone to forming, have a high tendency to form cations

Plutonium, also known as Pu, is one of the many elements that are included on the legendary Period Table of Elements. It is the chemical element that holds the atomic number 94 and is a very dense, silvery, radioactive metal that can be found in the fuel in nuclear reactors as well as in explosives for nuclear fission weapons. But, recently Gregory R. Choppin Professor of Chemistry at Florida State University, Thomas Albrecht-Schmitt, has unlocked an amazing plutonium discovery providing evidence

lanthanide elements. The first element in row 6 is lanthanum which is where the lanthanide group got its name. The word "rare” can make you think that the world is lacking these elements but the elements are in fact relatively abundant in the Earth's crust but in limited, insufficient amounts. The rare earth elements group got their name because at their initial discovery only tiny pieces of these metals could be separated from greater quantities of more common elements. rare earth elements tend to

Did you know that there are 118 elements on the periodic table? The first element appeared in the 1400’s This element was called bismuth. Since then there have been 117 other types of elements that have been discovered. Some of the elements that appear on the table are radioactive while others are not. There are many uses for all the elements on the table. However, the three most common radioactive elements that can generate energy and possible help find a cure for illnesses are uranium, plutonium

Flame Tests of the Elements Lab 1. According to your observations, which metal ion is present in your unknown samples? Explain your rationale. According to the observations recorded, the metal ion Cesium is present in the “unknown samples”. Unknown sample number five produced a violet color when placed in the flame. Unknown sample number four produced an orange color when placed in the flame. Unknown sample number one produced a violet color when placed in the flame. This evidence supports the claim

Calcium is an element in the human body. It was discovered in 1808 by Humphry Davy. Humphry Davy was a chemist and an inventor. Calcium is a chemical on the Periodic Table with the symbol Ca and atomic number 20. Calcium is a soft gray alkaline earth metal, it is the fifth-most-abundant element by mass in the Earth 's crust. The element calcium ion is also the fifth-most-abundant dissolved ion in seawater. Free calcium metal is too reactive to occur in nature or it is natural. Calcium is produced

Typically atomic radius increases as the elements go down a family. As the elements go down a family, they generally have an increasing number of energy levels or shells which results in an increased distance from the nucleus which makes the atom larger. Since the energy level is increasing, the screening level also increases. This means that the electrons are blocked and are held more loosely than other electrons closer to the nucleus. This causes the atom to be larger. As atoms go down a family

Magnesium is a chemical element with the symbol “Mg”. Magnesium is a shiny gray solid. The atomic number is 12 and it’s atomic mass is 24.305. Joseph Black a Scottish physician and chemist recognized magnesium as an element in 1755 but it was isolated by Sir Humphry Davy in 1808 (Periodic Table). High magnesium can be found in foods including nuts, fish, beans, avocados, yogurt, bananas, dried fruit, dark chocolate, and more. In Magnesium there are 12 electrons, 12 neutrons, and 12 protons. It’s

"Periodic Table of Elements." Periodic Table of Elements: Los Alamos National Laboratory.Department of Energy, 2016. Web. 25 June 2017. The group Uranium is found in is called actinides. The period Uranium is found is 7, and the block is block F. The symbol for Uranium is U. The atomic mass is 238.029 moles. The electron configuration for Uranium is [Rn]7s^25F^36D^1. The boiling point is 4131 C and the melting point is 1135 C. Uranium has 92 protons, 146 electrons, and 92 neutrons. Uranium’s

All elements are made of atoms, but it is the structure and arrangement of these atoms which determine the specific element, isotope and state. Each atoms is comprised protons, neutrons and electrons. The protons and the neutrons form the nucleus of the atom whilst the electrons orbit this nucleus in ‘shells’. The number of protons determine the element, the neutrons the isotope, and the electrons the charge. These atoms can be bonded together in one of three ways. Either metallic, ionic or covalent

table, I can tell that by going left and right and up and down, the atomic radius increases. Hence, calcium would have a higher atomic radius than magnesium which would also be higher than aluminum. Atomic radius affects the reactivity of elements because if an element has a small atomic radius, the electrons in the outermost orbital will be very close to the protons near the nucleus, making the protons have a tighter grip on the electrons ultimately making it both harder and slower to remove electrons

Do you know who created the vastly popular Periodic Table of Elements? That’s right! Mr. Dimitri Mendeleev has received a Nobel Prize and a Davy Medal as well as other notable achievements. In this essay I will cover all aspects of Mendeleev’s life including his childhood, adulthood, and his contribution to science. Dimitri Mendeleev was born in Siberia, in a village called Verkhnie Aremzyani, on February 8, 1834. His father was Ivan Pavlovich Mendeleev and his mother was Maria Dmitrievna Mendeleeva