Chemistry : The Chemical And Physical Properties Of Chemistry

* Protons and electrons have equal and opposite electrical charges. Protons are positively charged, and electrons are negatively charged.

Concept 2.1 Matter consists of chemical elements in pure form and in combinations called compounds

3. Oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus, potassium, sulfur, chlorine, sodium, and magnesium are elements essential to life.

12. Briefly define the following: Matter is anything that takes up space. Element is any substance that can’t be broken down into substances with different properties. Atom is the smallest part of an element that displays the properties of the element.

The elements were organized by Dimitri Mendeleév. He organized them by properties (columns), groups (horizontal), and atomic number (the number of protons and electrons). This became known as the Periodic Table. And currently there are 118 elements. He also found gaps in which elements that were yet to be discovered were to go, three of these unknown elements were found and identified in Mendeleév's lifetime. The elements today are used in everything and 75% of the 118 elements are metal.

According to Carolyn Ruth, author of “Where Do Chemical Elements Come From,” chemical elements came from the explosion of stars, also known as supernovas. In her article, Carolyn states that a newborn star is mainly composed of the first element on the periodic table, Hydrogen. Due to the high pressure within the star, a fusion process begins that fuses two protons and two neutrons together to form the second element, Helium. These fusion processes continue to form elements that weigh less than Iron. Once the star creates all elements up to Iron, the star eventually collapses and explodes. One article that agrees with Carolyn’s theory is “The Origin of the Elements and the Life of A Star”. According to this article, stars produce nuclear reactions

Chemistry relates to everything we touch, see, smell, hear, and taste because atoms make up everything in the universe. Chemistry influences so much in our everyday lives that it is hard to think of an activity that does not involve a chemical process in some way. The science also plays a major role in the human body. Our bodies are made up of chemicals, in fact almost 96% of our body mass is made up of four different elements: hydrogen, oxygen, carbon, and nitrogen. Besides the physical way I am affected by elements, chemistry also majorly affects me in my line of work as a certified nursing assistant. As a certified nursing assistant I work in a nursing home and

Elements are substances that cannot be separated into smaller substances and are made up entirely of one type of atom. Naturally existing elements can be categorized as either light elements or heavy elements. During the Big Bang light elements were formed such as hydrogen, lithium, lithium and deuterium. The heavy elements originated from Stellar Nucleosynthesis. Heavy elements, however, are formed such as uranium and iron are formed through Stellar Nucleosynthesis while materials heavier than this are formed through a supernova.

6. The atmosphere of early earth primarily may have consisted of a reducing atmosphere thick with water vapor, along with nitrogen and its oxides, carbon dioxide, methane, ammonia, hydrogen, and hydrogen sulfide.

chemical element here on our own planet Earth. Though it is a rare, unreactive noble gas,

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.

In the world there are 118 different elements. Each of these elements have a specific job that they accomplish for us and the Earth. Some of these elements are used more than others. There are even a few that do not occur naturally on Earth, which means they are created in labs or in other controlled areas. Many are even harmful to us which can cause many illnesses if not treated with care. Although some may be harmful or some may be man-made they serve a purpose in order to keep our world going.

Chemistry is the science that studies all properties of matter. Chemistry is an immense subject that exists everywhere in the world, from chemical compounds in the human body to detergents used in daily basis, chemistry can be in anything we can think of. Reason why, ever since I was a junior in High School I dreamt with becoming a chemical engineer in the near future. Being a chemical engineer is not just about knowing chemistry, but also implementing the engineering principles to mass produce products, and share them with consumers. Correspondingly, a chemical engineer utilizes the principles of chemistry in order to solve problems that involve the production in large-scales of chemicals, food, fuel, makeup, and many other products manufactured by chemical engineers.

An Atom is the the basic building block of all matter. Atoms are made up of Particles, called: Protons, neutrons and Electrons. Protons carry a positive charge, the neutron carry 's a neutral charge and the electron carry’s a negative charge. The Atom has two main parts the Nucleus and the Electron Shell. The Nucleus contains the Protons and Neutrons. The electron Shell Contains the The electrons.

Chemistry has been called the science of what things are. Its intent is the exploration of the nature of the materials that fabricate our physical environment, why they hold the different properties that depict them, how their atomic structure may be fathomed, and how they may be manipulated and changed.