Science Periodic Table Essay

The Periodic card The occasional table has been updated all through out(p) history. Elements have been around us since the beginning of time. Elements, such as gold and silver, are examples of these particles that have been cognise for centuries. The daily table allows us to see the elements in their families so we tooshie understand what properties they have. It also allows us to see the atomic number, atomic mass, and the symbolic representation of the element. The periodic table is a source of knowledge that is still macrocosm updated as of this day.That is why the periodic table is such a rich resource. In ancient times, the elements gold and silver were spy. Another element that was cognise at this time was copper. The Greek philosopher, Aristotle said that all elements were made out of these four roots. The philosopher, Plato, renamed the four roots earth, fire, water, and air. Although they introduced the concept of elements, they did nothing to advance the consti tution of the matter, which matter is made of. The age of enlightenment was a big take a chance for the science world.Hennig Brand was the first person recorded to have discovered a upstart element. He was a German merchant who went bankrupt, firearm trying to discover the Philosophers Stone. The Philosophers stone was a mythologic object that was supposed to turn inexpensive base metals into gold. He experimented with distilling gentleman urine until he finally obtained a white substance which he named phosphorous in 1649. Brand did not go to the public with his stripping until another scientist named Robert Boyle rediscovered it and took it to the public.In 1661, Boyle defined an element has a substance that cannot be worried down by chemical means. Antoine Lavoisier developed the first chemistry textbook. This include the elements oxygen, nitrogen, hydrogen, phosphorous, mercury, zinc, and sulfur. Lavoisiers descriptions of the elements only classified elements as metals or non-metals. Johann Dobereiner began to classify the elements in triads. These elements that get to these triads had properties that were similar to each(prenominal) other. A few of these triads are as follows 1.Chlorine, bromine, and tincture of iodine 2. Calcium, strontium, and barium 3. Sulfur, selenium, and tellurium 4. Lithium, sodium, and potassium. With all these triads, the atomic mass of the second element was al almost exactly the average of the atomic weights of the first and third elements. By 1869, 69 elements had been discovered. Alexandre Chancourtois was the first to notice the periodicity of the elements. Similar elements seemed to occur at regular intervals when they were arranged by their atomic mass. He created an early interlingual rendition of the periodic table.He called it the telluric helix. When the elements were arranged on a cylinder by order of the increasing atomic mass, Chancourtois could tell that the elements with similar properties lined up verti cally. He published this work in 1862, but there was petty to go on. In 1865, John Newlands classified 56 elements that had been discovered antecedently into eleven groups based on similar physical properties. Newlands said that some pairs of similar elements existed differed by some multiple of eight in atomic number.Dimitri Mendeleev created the periodic table that we use today. He arranged the elements by their atomic mass and noticed that they lined up with the elements that had similar properties with each other. He also noticed that when they were arranged in this way, the valences lined up as well. When he published his table in 1869, it had many advantages. This table is more(prenominal) widely used in todays time. The discovery of the periodic table is also the discoveries of the elements.As the elements were discovered, they were added to the periodic table. Since the beginning of time, more elements have been discovered. The most recent was ununpentium. It was discover ed in 2011. As anyone can see the periodic table is continuing to grow and develop. It is a child of the elements. As each element is named, the periodic table grows. The periodic table will constantly be an ongoing process and the updating of it will never end. That is because new elements are discovered every day