History of the periodic table

Now for all this history there are certainly important leaders of chemistry that need to be given some credit. First there is Jābir ibn Hayyān who is also known as Gerber. He was a chemist from the eighth century AD. Geber became one of the first people to use scientific methods to study and experiment. Through his experiments and studies he is thought to have discovered hydrochloric acid, sulphuric acid, and nitric acid. He also discovered what is now called Aqua Regia, which is an acid that is…

Cerium is a rare earth element of the lanthanide series (atomic no. = 57– 71) of the periodic table. Among the various rare earth metals, cerium granted a hugeattention towards scientific community due to its catalytic antioxidant property. Usually, antioxidants protect cells from oxidative damage, mediated by ‘reactive oxygen species’ (ROS), which include free radicals such as superoxide anion (O2•-), hydroxyl radical (•OH), singlet oxygen (1O2) and non-free radical species like hydrogen…

The origin of the name comes from the word Scandia, which is the latin name for Scandinavia. This element belongs to group 3 which consists of transition metals and Scandium shares this group with the element Yttrium. There are 4 groups in the periodic table and they are: metals, non metals, transition metals and gases. The chemical properties of Scandium are very similar to the rare earth elements. It reacts very quickly with acids and when reacting with oxygen, it tarnishes and burns to form…

can be found in different oxidation states, that is, different ionic states e.g. Iron (Fe) has two oxidation states, Fe (I) and Fe (II). This means that Iron can have the ionic form of Fe+2 or Fe+3. There is a density trend on the Periodic Table, but…

What is a Periodic Table and what is it used for in science and our everyday lives? On entering the chemistry laboratory at Mercer University, for Science 100 a large colorful chart displaying rows and columns of cells, was hanging over the chalkboard. I immediately felt a bit intimidated and my heart began racing. I questioned myself as to what am I about to experience? Moving closer to examine the chart, I felt as if the bright colors on the chart were generating warmth (energy) and…

He is known for his work on the Periodic Law and the creation of the very first periodic table. Mendeleev dedicated many years of his life to collecting information about all the 63 elements that had been discovered during his time. Mendeleev had noticed that there were groups of different elements with very similar atomic masses and other chemical properties. Mendeleev had created the periodic law which is a law stating that the elements, when listed in order of…

Theq element on the Periodic table that is best representation of my personality would be element 13, Aluminum. Properties of Aluminum its included high melting point, conductivity, malleability, and non-toxicity. Aluminum’s high melting point represents my determined personality. This is because I can face adversity well. Even when situations occur that are extremely unfavorable I am able to keep a cool head and think straight. I can persevere and stay strong allowing myself to solve and get…

Gilbert Lewis first introduced his theoretical dot structures in 1916. Today, these same dot structures are used to illustrate the chemical bonding nature of atoms. How did Lewis formulate these brilliantly simple representations of nature? The Lewis Dot Structures we know today actually derive their functionality from Lewis’ own model of the atom, the Theory of the Cubical Atom. This essay will explore the functionality of Lewis’ cubical atom and how this model led to the Lewis Dot Structures.…

pressure increases, along with higher temperatures, cell size and cell volume begin to undergo changes, and bond angles become smaller eventually. Various other factors also govern the stability of the entire structural formation. Referring to the table below which is extracted from the report, we are able to tell how α and ß transition is affected by the coordinates of ∂1 and ∂2 where diffraction takes…

Bismuth is the 83rd chemical in the periodic table. It is found as a natural metal on the surface of the earth. Bi has a ground state electronic configuration of [Xe]4f145d106s26p3 and trivalent and pentavalent Bi, Bi(III) and Bi(V), respectively, are the two predominant oxidation states. [27] It was discovered over a thousand years ago but was often confused with tin and lead. It is a prevalent post transition metal, which chemically resembles arsenic or antimony. Bismuth is the most naturally…