The Periodic table of elements is an extremely important and useful scientific tool, mostly in the area of chemistry, but also in many other scientific areas. It has been around for hundreds of years and over time has been continuously added to and develop by many different scientists. The Periodic table contains over 100 elements, each one with varying physical and chemical properties. The Periodic table has not been simply one person creating and discovering all the elements, it has been the combined work of many different scientists. Although, Dimitri Mendeleev is often considered the creator or even father of the Periodic system.
Development of the Periodic Table
Introduction:
The Periodic Table of Elements is a table that arranges all known chemical elements by order of their atomic numbers. During the 1600s, vast amounts of knowledge about the properties of elements and their compounds were discovered and by 1869 63 elements had been discovered. As more and more elements were discovered, scientists began to recognise similarities between their properties and began to devise means of classification. Thus the periodic table of elements was created.
Chemistry and technology have made a big difference in the way we live and see things in this time. Decades ago technology was not a major part or even part of chemistry. Technology has made chemistry more efficient and accurate. But it was not always easy to tell how chemistry helped or for what reasons it was used for. Society’s life before technology was involved was much more complicated. Well for us it would be, because of what we have now. But society did not always have the right equipment. For the chemists that there was a long time ago chemistry was very important to them. Chemistry is so fundamental to our world chemistry plays a very important role in everyone’s lives. Back then it was a problem identifying about health, materials, and the energy that we use without the advancements of technology. Society before technology was not able it progress as fast as it does .Medicine was not able to made as it is today, today people are not even needed to produce it. Machines can do it themselves now a day. Chemicals were not that easily identified also they were a little more difficult to be tested. Their results were not as easily described and not always accurate. They had a bigger struggle on how to do things but they worked with what they had. Also when someone came up with a new type of virus or some symptom or something that needed medical attention, was complicated for them to try and figure what it was or if it was the weather change. But thankfully technology has been improved to help us live better and in a safe environment.
Around a decade and a half after Robert Boyle, in 1803, a Scientist from England named John Dalton published the atomic theory of matter and “realized that each chemical element was made up of atoms” (Doc. 1). This means, “Atoms make up all elements” (Doc. 3). Although the discoveries became more important as time went on, it did not slow down new findings. In 1869, a russian chemist named Dmitri Mendeleyev created the Periodic Table. The periodic table is an organized display of all the elements. One way to find where an element is on the periodic is by looking at the number of protons. “If you know the number of protons, you’re able to find the element on the periodic table” (Doc. 2). The atomic number of an element is equivalent to the amount of protons in the
Four-hundred years ago, scientists began identifying substances now know as elements. They began recognising patterns in the properties as the number of know elements grew, leading to the beginning of classification schemes that would come to devise the periodic table as we know it today ("The Periodic Table", n.d.).
Ch 3 Outline:
Pg. 61 Once upon a time a Chinese cook combined charcoal with two other common Chinese ingredients. It ended with an explosion of sparks. Even if that story is false, most everyone agrees that fireworks originated from China.
Introduction
Science, defined by the Merriam-Webster dictionary as “knowledge or a system of knowledge covering general truths or the operation of general laws obtained and tested through the scientific method. ”1, is often used by humanity to improve themselves in various aspects. It used Biology and by extension Medicine to restore the human body in the event of an injury, cure the human body in the event of disease, and improve the human body so that it could do its functions more effectively. It is used in Engineering to make homes for people and infrastructure to make life easier to live. It is used in Psychology to better understand people, helps people with mental and psychological conditions cope with their condition and live their
A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.1 The periodic table shows all know elements which total to over 100. The discovery of the periodic table was the greatest achievement in modern science of today and opened many new chapters in the science world as we know it today.
The Periodic Table contains chemical elements which are arranged in order of atomic number, however the periodic table changes or has changed overtime due to many reasons, such as new discoveries.
The Periodic table was created by Dmitri Mendeleev, in 1869. It was developed to show people each element and its properties (physical or chemical). The properties of the periodic table is to show or predict the features properties that each element has. There are currently 118 elements that are on the periodic table, increasing by 1 from 2014 which was 117. Within the periodic table there are some regions, which include;The Alkali Metals, Alkaline Earth Metals, Rare Earth Metals, Transition Metals, Post-Transition Metals(other metals), Metalloids, Nonmetals, Halogens and Noble Gases. The oldest elements are; copper that was discovered in 9000 BC and Lead that was discovered in 7000 BC.