Full Form of Elements

The students created a macroscopic, three-dimensional (3D) model of several properties of the periodic table. They explained in their own words the following terms: atomic radii, ionic radii, first ionization energy, and electronegativity. Lastly, they identified, described, and explained the patterns observed in the 3D periodic tables for the following element properties: atomic radii, ionic radii, first ionization energy, and electronegativity.

The text is formatted as a journal article and has been peer reviewed. It was published on August 31, 2015, in Europhyiscs Letters, a journal founded in 1986 by the European Physical Society. The article references multiple sources that are also academically reliable.

Strontium is a chemical element with symbol Sr and atomic number (protons in nucleus) 38 and atomic weight 88.1 It is a soft, silver-gray metal, and has physical and chemical properties like to Calcium and Barium. It is available as four stable isotopes ubiquitously (Isotopes are differ in forms of an by number of protons in nucleus but possess a variable number of neutrons.) Strontium-88 is the most dominant among other forms, comprising 83% of natural strontium, where in additional three stable isotopes and their relative abundance are strontium-84 (0.6%), strontium-86 (9.9%), and strontium-87 (7.0%). Strontium is available ubiquitous vitally as as celestite (SrSO4) and strontianite (SrCO3), and it comprises about 0.025% of the earth’s crust. There are 16 major radioactive isotopes of strontium, but only strontium-90 has a half-life sufficiently long (29 years). In comparison with half-lives of remaining strontium radionuclides are fewer than 65 days. Strontium-90 decays to yttrium-90 by decaying a beta particle, and yttrium-90 decays by decaying a energetic beta particle with a half-life of 64 hours to zirconium-90. The key health concerns for strontium-90 are associated to the energetic beta particle from yttrium-90.2

There is a combination of three things expressed in the Ato Circular Periodic Table, the periodic classification of the elements, the structure of atom and measurement of angles. This alternative periodic table represents and explains the theories of structure of the atom, the measurement of angles has been used to show that anticlockwise angle is positive and clockwise angle is negative; the color plays a major role in the explanation of

In this lab, students compared the periodic trends of the elements in comparison to the atomic number. A periodic trend is the tendency of certain properties of the elements to increase or decrease as one progresses along a row or column of the periodic table. The periodic table is arranged in such a way that these trends are easy to compare, which is the purpose of this lab. One trend, for example, is between the electronegativity and the atomic number on an element, another being the density. When comparing the trends, notice that electronegativity decreases when going down the groups, or columns, of the period table, whereas the density increases.

I came to the conclusion that they should appear (Cl, Br, I) from top to bottom respectively. Based on the previous information regarding mass increases as you go down the periodic table I was able to come to this conclusion. I observed that Cl had the least color concentration, then Br, then I had the most. The greater the color concentration, the greater the mass. This observed data let me come to my conclusion.

The rare earth mineral/element yttrium is a soft-silvery, crystalline transition metal, which is naturally found stable in the half-life isotope form of 89Y (1). The element is found on the periodic table in group 3, and period 5, with an atomic number of 39, and can be considered ductile, odorless, lustrous, fairly reactive, and soluble in hot water (1, 2). Not only does this element have a hexagonal crystal structure, it has an atomic mass of 88.906u, has melting point of 1522°C, and a boiling point of 3338 °C(1-3). Yttrium is available in many different compounds, and forms just alone in metal (2, 3). Some of these forms include, but not limited to metal balls, turnings, wire, rocks, ribbon, rings,

Hi I’m Calcium I have 20 protons, 20 electrons, and 20 neutrons. My atomic number is 20 and my atomic mass number is 40. My number of electrons in energy level is 20 and my energy level number is 20. Also the period number I belong in for the periodic table is 4. The discovery name is Humphry Davy and he was the one that made me. The year that I was discovered was 1808 and the country they decided to discover me was in England. My element symbol is Ca.

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Thallium is a metal located in family 13 and period 6. Ti represents the atomic symbol for Thallium. It’s atomic number is 81, while it’s atomic mass is 204.38 or just 204. There are 81 protons and electrons and 124 neutrons. 5 energy levels can be found in this element; they consist of 2 in the first, 8 in the second, 18 in the third, 32 in the fourth, and 3 in the fifth. Due to the last energy level having 3 electrons, that would also the the number of valence electrons it has. This element was founded by Sir William Crooke in 1861. In 1862, his Crooke and a French chemist Claude-Auguste Lamy concluded thallium to be metal isolating it.

The raw material are rare to be found on earth which has rich in helium-3 that is mostly used for electronics, nuclear-fusion research and constructing solar panels.

Olmsted, John III; Williams, Greg; Burk, Robert C. Chemistry, 1st Canadian ed.; John Wiley and Sons Ltd: Mississauga, Canada, 2010, pp 399 - 406

In his book The Element, Ken Robinson claims that you should never give up on what you love even with the circumstances given. He shows that in order to have luck in life or to be considered a lucky person you, have to have a positive attitude. Robinson also shows us that you need to have potential to look at situations differently. Furthermore, he tells us that you need to overcome challenges and never give up on what you love. Similarly, in her book Mindset, Carol Dweck claims that in order to be successful you have to believe that a simple mindset can change your behavior and beliefs. Dweck says that human skills can grown through effort when you challenge yourself. Having a growth mindset encourages learning and effort. Dweck also says

90 other elements were found in the meteorite, it gave them the basic chemical fingerprint of early earth.

2. Miller, F.; Wilkins, C. Infrared Spectra and Characteristic Frequencies of Inorganic Ions. Ph.D. Dissertation, Mellon Institute, Pittsburgh, PA, 1952.