Chemical element

4.2.1. Material: Lead zirconate titanate (PZT) PZT is a short for lead zirconate titanate inorganic compound that has a chemical formula of Pb [ZrxTi1-x] O3 (0 ≤ x ≤ 1). PZT is made and composed of the two chemical elements lead and zirconium combined with the chemical compound titanate while formed under extremely high temperatures. The dielectric constant of PZT can range from 300 to 3850, depending upon orientation and doping. PZT possesses piezoelectric effect meaning that it changes shape…

Atoms are what make up what we call “matter.” They are the smallest units of a chemical element, and they consist of protons, neutrons, and electrons. These components form an atom’s subatomic particles. Before discussing the copper atom at length, we must first be able to understand the components that comprise an atom. The first of these components that make up an atom is the proton. The proton is a very important part of an atom, because the atomic number of an atom is equivalent to the…

My element Sulfur is the most important element there is. The symbol for Sulfur is S. An yellow looking odorless substance that is found underground. Sulfur has an atomic number of 16, atomic weight of 32.065. The element Sulfur is classified as a non-mental with the boiling point of 832.28 degrees Fahrenheit and a melting point of 239.38 degrees Fahrenheit. There are several mixture of sulfur compounds, including the mineral pyrite, or iron sulfide. Each of these types of Sulfur plays its own…

“Matter, though divisible in an extreme degree, is nevertheless not infinitely divisible. That is, there must be some point beyond which we cannot go in the division of matter… I have chosen the word “atom” to signify these ultimate particles.” – John Dalton. John Dalton is a British chemist who was born in September 6, 1766 in Eaglesfield, England and died on July 26, 1844 in Manchester, England. At the age of 12, he started teaching at a Quaker school in Cumberland. Dalton worked as a farmhand…

Selenium: The Essential Element Introduction Over the years, selenium is known to be the essential element in all forms of life. Selenium is a metalloid belonging to the block p, group 16, period 4. It is a gray metallic rare element widely distributed within Earth’s crust which has an atomic number of 34 and a symbol “Se”. Selenium was discovered in 1817 by Jöns Jacob Berzelius and Johan Gottlieb Gahn after analysing an impurity contaminating the sulphuric acid being produced by a factory…

makes up all the four elements. “There are over 100 different kinds of atoms ”(OI/https://www.thoughtco.com/interesting-facts-about-atoms-603817).Over time the theories about the atom have changed a lot, moving from simple to complex. Before 1900, scientists made several breakthroughs about the atom. First, in 450 BC, Leucippus and Democritus were the first people to propose that matter is made of atoms (Doc. 1). Next in 1661, Robert Boyle suggested that chemical elements were the simplest…

The element I selected for the Element Research Project is Osmium. Osmium’s chemical symbol is Os. Osmium’s atomic mass is 190 amu. Osmium’s atomic number is 76, it has 76 protons and 76 electrons. Osmium also has 114 neutrons. Osmium belongs to the transition metal group in the middle of the periodic table. Osmium’s Bohr model with electric configuration has two electrons in the first shell, eight in the second shell, eighteen is the third shell, thirty two in the fourth shell, fourteen in the…

Properties; Beryllium is a toxic bivalent element; with a steel gray metallic look to it. Beryllium is also a durable, lightweight element. Primarily used as a hardening agent in alloys. It has one of the highest melting points of the light metals. With the atomic number of 4, and being classified within the group of alkaline earth metals. The element is nonmagnetic and resists oxidation when exposed to air at standard temperature and pressures. It’s also found in over 30 different minerals; for…

Our world is made of elements and combinations of elements called compounds. An element is a pure substance made of atoms that are all of the same type. At this given time, 116 elements are known, and roughly about 90 of these occur naturally. But how do we know what elements are in our universe?, Scientists have developed many theories as to why and how we know. These theories consist of mainly the Big Bang Theory and how it had created the first and lightest elements in our universe, or Red…

Mendeleev lived and worked before there was a consensus on the constitution of an atom. Were they solid and uniform throughout with only mass differentiating between elements, or were they particulate and composed of certain “sub-atoms”? Mendeleev staunchly adhered to the former theory and explained certain phenomenon characteristic of electrons and protons (valence properties, radioactivity) as a result of this ether…