The Science Of The Chemistry

John Dalton wrote the modern atomic theory, a fundamental component of that is, the mole ratios of elements in a compound will be small whole numbers.

He is also best known for the theory that was created by himself. The theory of Democritus and Leucippus held that everything is composed of "atoms", which are physically, but not geometrically, indivisible; that between atoms, there lies empty space; that atoms are indestructible; have always been, and always will be, in motion; that there are an infinite number of atoms, and kinds of atoms, which differ in shape, and size. Of the mass of atoms, Democritus said "The more any indivisible exceeds, the heavier it is." But his exact position on weight of atoms is

The philosopher Democritus was the man behind one of the first atomic structures. Even though many studied the atomic structure before, the greek philosopher is one of the most recognized

Around 2,500 years ago, Democritus and his partner Leucippus were the first ones to develop the atomic theory in written history. Their theory proposed that every kind of matter was made up of tiny particles, which were named atomos, which means that it is indivisible. This meant that Democritus and Leucippus thought there were little particles of everything, but, the next breakthrough in atomic theory wasn’t made until the early 1800s with a french chemist by the name of Antoine Lavoisier, he was the one who came up with the idea of the law of the conservation of mass, which states that matter stays the same even when it changes shape or form. Then, James Dalton said that all matter was made up of atoms, which were indivisible, and unbreakable.

Democritus made the atomic theory widely known, which stated that the universe is composed of two elements: the atoms and the void in which these atoms exist and move. (More, 1646)

Over the course of the last 5000 years, mankind’s knowledge has been constantly advancing. Chemistry, a branch of science, has experienced a tremendous leap and expansions since ancient Greek civilization. One of the major breakthroughs in the advancement in Chemistry was the creation of the Atomic theory, which laid a foundation for the modern-day Chemistry and future of science. The Atomic theory introduced the idea of atoms, which are defined as the discrete units of matter. There are five key scientists that significantly contributed to the Atomic model over a span of thousands of years. They are: Democritus, John Dalton, J.J. Thompson, Ernest Rutherford, and Niels Bohr.

Medieval alchemists “invented new ways to isolate, purify, and concentrate substances” (Challenging Limits). The alchemists established the value of analysis, which was fundamental to what became chemistry. First, it was Antonie de Lavoisier who used the techniques to move into the modern age of chemistry. He started by isolating elements and identifying the basic building blocks of nature. Even Humphry Davy was interested in learning the basic building blocks of nature. Until, in 1898, a new element was discovered that drew many questions to scientists. Radium had glowed in the dark and when photographed seemed to be giving off its own energy. At the time, no one knew that the radium was a deadly poison, which harmed human tissue. However, the effect on photographic plates that radium gave allowed humans to discover x-ray scans. These x-ray scans allow us to diagnose and treat diseases. With all of these elements taken into consideration, scientist began to ask themselves, “what are the elements made

Honor means to hold with high respect or esteem. My view of honor is to give respect to those who deserve it. Dmitri Mendeleev, the creator of the first periodic table, is one of those who deserve the respect honor has to offer. Dmitri Mendeleev was born February 8, 1834. When he was young, his father went blind and couldn’t work.

Stanislao Cannizzaro was born on July 13, 1826. When he was younger, he showed great skills in mathematics. He later became an assistant to Rafaelle Piria. Cannizzaro saw his dedication to his work that Piria influenced him to transform his study to chemistry. Cannizzaro later determined the different atomic weights. Dmitri Ivanovich Mendeleev always had a love for history, math, and physics. He attended the University of St. Petersburg where he formed the ideas of chemical compounds. Mendeleev found out that you could simplify the periodic table by separating them into different groups. He arranged them by the atomic weights and then later realized they had similar chemical properties. He had also given predictions of future elements and their properties.

Before history was recorded humans had knowledge of certain elements including gold (Au), copper (Cu), silver (Ag), mercury (Hg), tin (Sn) and lead (Pb). Nevertheless, it wasn’t until the year of 1669 that Hennig Brand discovered the very first element – Phosphorous (P) – through scientific inquiry. Hennig Brand discovered phosphorous through extracting it from urine. Due to the element having the ability to grow in the dark it was referred to as “light bearer”. In 1980 English chemist Robert Boyle discovered phosphorous independently, following Hennig Brand keeping the process of his discovery secret.

Robert Boyle made many significant contributions to a number of subjects, including chemistry, physics, the discovery of many different unknown properties of air, and making connections between science and his religious beliefs. Many of his discoveries and theories laid the beginning groundwork for a number of the modern sciences used today and added upon previous discoveries from before his time. He greatly impacted the world during the Scientific Revolution time period and his work during that time continues to leave a lasting impression still today. He went up against the accepted beliefs of the time period and disproved many of them in the process of experimentation. In fact, without Robert Boyle, alchemy would still be the main science

Description: Experimental chemists study and record the interactions between substances at the molecular level. While some chemists work alone, most have a team of chemists experimenting differently to achieve the results together. Theoretical chemists are the thoughts behind the experiments. Most theoretical chemists hypothesize the theories and the experimental chemists test them to be true or not.

Robert Boyle is the scientist behind Boyle’s law, which explains the relationship between gas pressure and volume.

Giacomo Luigi Ciamician was a well-known professor, Italian senate member, and Italian chemist who made brilliant discoveries and has many accomplishments that have impacted the way chemistry is practiced today. Ciamician was one of the founders of photochemistry. He discovered and experimented with solar energy, which is one of his greatest achievements. He also made discoveries with the periodic table that provoked questions from other scientists, causing a chain reaction of scientific breakthroughs. While Ciamician’s many discoveries mostly relate to chemistry, they vary greatly in content, showing that he was an individual of both intelligence and curiosity.

Leucippus and Democritus discovered the atom(doc. 1). Ernest Rutherford split the atom and discovered that the atom is made of smaller particles and that atoms have a positively charged nucleus and largely empty space(doc. 1). Without Leucippus and Democritus, no one could expand on the idea of the atom and without Rutherford no one would have thought of the nucleus and what is inside the atom(doc. 1). Atoms are so small