Atom DBQ An atom is a microscopic thing that does a very large job. It is the building block of life and makes up all matter. The discovery of the atom changed the view of almost all of science. The idea of the atom has changed many times since its discovery, creating a monumental ripple on the scientific community. It was originally just a circle of mass but now it has been found to be a nucleus with specific parts and a electron cloud which orbits the nucleus (OI). To begin with the theory of the atom, we must first dive into how it was discovered. The first man to propose the concept of an atom was a Greek philosopher named Democritus in 450 BC (Doc. 1). After that initial proposal, the progress on the theory of the atom slowed down. The next large breakthrough was in 1661 when an Anglo-Irish chemist named Robert Boyle, “suggested that chemical elements were the simplest form of matter” (Doc. 1). The gap between the advancements were mainly caused by the dearth of microscopic understanding and technology. In further detail, it is hard to research a miniscule object when you have no possible way of looking at it. …show more content…
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
In "Energy Story" uses an explanation of atoms and tells us the parts of an atom and its structure. In the text it
Although some of the elements have been known for thousands of years, our understanding of many elements is still young. Mendeleev’s first Periodic Table contained only 63 elements, and about that many were discovered in the following 100 years. Just like countries, emperors, philosophers, and cities, elements have histories, too.“The Disappearing spoon” by Sam Kean, is a detailed history of the elements on the Periodic Table. Kean does a important job of telling every single element’s journey throughout the history of mankind: from the earliest times, when chemistry was intermingled with alchemy, to these days of modern chemistry. For example: Thallium is considered the deadliest element, pretending to be potassium to gain entry into our cells where it then breaks amino acid bonds within proteins. The CIA once developed a plan to poison Fidel Castro by dosing his socks with thallium-tainted
Dalton’s atomic theory, which stated “the atoms were tiny, indivisible, indestructible particles” (Bender), differed drastically from that of the Greeks’ in that it “wasn’t just a philosophical statement that there are atoms because there must be atoms” (Bender). Although Aristotle believed that there are four terrestrial elements, earth, water, air, and fire, Democratus believed that “a piece of a substance can be divided into smaller pieces of that substance until we get down to a fundamental level at which you can’t divide the substance up and still have pieces of that substance” (“Atoms”). Aristotle’s theory was popular, but incorrect; Democratus’s was closer to our current theory, yet he remained relatively unpopular and obscure. This demonstrates of the key way in which a personal point of view can, in fact, retard the pursuit of knowledge. The scientist with the better oratory abilities has his theories more widely accepted. Dalton’s own theory, which extrapolated upon four basic
An atom, by definition, is the smallest part of any substance. The atom has three main components that make it up: protons, neutrons, and electrons. Protons and neutrons are within the nucleus in the center of the atom. The electrons revolve around the nucleus in many orbitals. These orbitals consist of many different shapes, including circular, spiral, and many others.
...arch so many different theories and laws to test the consistency of the atom. Before Dalton, philosophers didn’t even know that atoms could be seen. With John Daltons discoveries we have been allowed to better understand the atom and all of the crucial elements that are combined to make it up. With this knowledge we have been able to understand the difference between a liquid, solid, and gas. If we have so recently been able to understand all of this new information, there is no telling what the future may hold for the research of the atom.
Atoms are one of the most basic units of matter. They are made of positively charged protons, neutrally charged neutrons, and negatively charged electrons. The nucleus is made up of the protons and neutrons, while the electrons orbit the nucleus. The number of protons determines what element the atom is. Atoms work to achieve an outer shell of eight electrons. To do this, an atom may give away, take, or share electrons. This leads to different kinds of bonding, where two or more atoms become linked together and form either molecules or molecular compounds.
This showed that dissolved gases were mechanically mixed with the water and weren?t mixed naturally. But in 1803 it was found that this depended on the weight of the individual particles of the gas or atoms. By assuming the particles were the same size, Dalton was able to develop the idea of atomic weights. In 1803 this theory was finalised and stated that (1) all matter is made up of the smallest possible particles termed atoms, (2) atoms of a given element have unique characteristics and weight, and (3) three types of atoms exist: simple (elements), compound (simple molecules), and complex (complex molecules).
The theory of quantum mechanics has divided the atom into a number of fundamental sub-atomic particles. Although the physicist has shown that the atom is not a solid indivisible object, he has not been able to find a particle which does possess those qualities. Talk of particles, though, is misleading because the word suggests a material object. This is not the intention for the use of the word in quantum physics. Quantum particles are, instead, representations of the actions and reactions of forces at the sub-atomic level. In fact, physicists are less concerned with the search for a material particle underlying all physical objects and more interested in explaining how nature works. Quantum theory is the means that enables the physicist to express those explanations in a scientific way.
Atomism tells us that everything in the universe is fashioned out of small invisible and eternally existing particles called atoms. Certain qualities of atoms explain why different substances have different attributes.
The Periodic Table is one of the most recognisable and valuable scientific resources. With over 100 elements, each with different physical and chemical properties, the discovery of the periodic system has been one of the most important discoveries in the history of science. The first element, phosphorus, was discovered in the 17th century. There have been numerous discoveries that have developed the Periodic Table. Humans have been aware of these elements for thousands of years; the ancient elements were fire, water, earth and air.
Dmitri Ivanovich Mendeleev created his first Periodic Table in 1869. Dmitri left gaps in his table for he predicted elements to be found later on in time. “He is a Russian chemist who developed the periodic classification of the elements. Mendeleyev found that, when all the known chemical elements were arranged in order of increasing atomic weight, the resulting table displayed a recurring pattern, or periodicity, of properties within groups of elements.”(Bensuade). The Periodic Table is a chart like structure of the elements. Everything in the world is made of the one hundred elements in the table. “He even predicted the likely properties of three of the potential elements. The subsequent proof of many of his predictions within his lifetime brought fame to Mend...
The Atomic Theory began in roughly 400BC with Democritus in Ancient Greece and is universally believed to be correct today. Democritus who was born in 460 BC and died 370 BC and is known as the father of modern science. Democritus proclaimed that everything is made up of atoms. He continued his theory to say that atoms will always be in motion, between atoms there is empty space, atoms are unbreakable, there are an infinite number of atoms all different sizes and shapes. He also said that iron atoms are solid and strong and have hooks to lock them together, water atoms are smooth and slippery, salt atoms have sharp jagged edges because of its taste and air atoms are light and spiralling.
Dalton was the first person to develop a scientific atom theory, the ancient Greeks had ideas about the atom but could not prove it scientifically. Antoine Lavoisier and Dalton are responsible for the discovery of 90 natural elements. Dalton also explained the variations of water vapor in the atmosphere, the basis of meteorology. Dalton’s atomic theory says that each element contains its own number of atoms. Each element has its own size and weight.
I feel personally that the discovery of the atom was an important discovery for the world. With the discovery we are now able to answer questions we never even thought to ask. We are also answering questions some people asked long ago. We can now use our vast knowledge of the atom to measure the stars and be able to tell you what the stars are made of. The atomic discovery also helped us find our periodic table of elements. The periodic table of elements is a huge scientific chart that shows important facts with the help of its formation. There was a lot of constant scientific research that went into making the periodic table of elements and what it is today.
Scientists from earlier times helped influence the discoveries that lead to the development of atomic energy. In the late 1800’s, Dalton created the Atomic Theory which explains atoms, elements and compounds (Henderson 1). This was important to the study of and understanding of atoms to future scientists. The Atomic Theory was a list of scientific laws regarding atoms and their potential abilities. Roentagen, used Dalton’s findings and discovered x-rays which could pass through solid objects (Henderson 1). Although he did not discover radiation from the x-rays, he did help lay the foundations for electromagnetic waves. Shortly after Roentagen’s findings, J.J. Thompson discovered the electron which was responsible for defining the atom’s characteristics (Henderson 2). The electron helped scientists uncover why an atom responds to reactions the way it does and how it received its “personality”. Dalton’s, Roentagen’s and Thompson’s findings helped guide other scientists to discovering the uses of atomic energy and reactions. Such applications were discovered in the early 1900’s by using Einstein’s equation, which stated that if a chain reaction occurred, cheap, reliable energy could b...