Periodic group

Beryllium General Characteristics According to Hornbostel (1991), Beryllium is a hard, exceptionally, lightweight, gray-white metal, corrosion resistant at ordinary temperatures; chemically it is related to aluminum. Other than titanium, it is the only light metal which has both good strength and a high melting point. Additionally, it is a good electrical conductor, has high modulus of elasticity, exceptionally transmit x-rays and sounds at very high velocities. Moreover, it has the ability to…

Fig (10) Picture source: https://www.castrads.com/workspace/images/spares-accessories/1.25in-0.5in-cast-iron-reducing-bush.jpg Cast Iron is nothing but a group of iron-carbon alloys which has carbon content greater than 2%. The constituents of the alloy affect the colour when fractured. Carbon and Silicon are the main alloying element, with amounts ranging from 2.1-4wt% and 1-3wt% respectively. Cast Iron…

Currie radioactivity is now frequently used to treat cancer and has the potential to save lives. Marie Currie was a powerful figure who benefitted society’s view of women through her winning of two Nobel Prizes, discovering radioactivity and two periodic table elements, and founding…

The element Magnesium got its name when it was discovered. It is a silvery white metal that is highly reactive. Its chemical symbol is Mg and atomic number is 12. Its atomic mass is relatively 24. Therefore, it has 12 protons, 12 neutrons, and 12 electrons. According to Steve Gagnon in “The Element Magnesium” Magnesium was isolated by Sir Humphry Davy, an English chemist, through the electrolysis of a mixture of magnesium oxide and mercuric oxide in 1808. Magnesium has a melting point of 650°…

their atomic weight. In addition Dalton discovered that atoms couldn’t be created or destroyed. The last influential chemist is Dmitri Mendeleev. Dmitri Mendeleev was a chemist in the 19th century. Dmitri Mendeleev is known for creating the first periodic table of elements. He set the table up in order of atomic mass. When the elements were set up in this style similar elements could be grouped together to show they had similar properties. Since this table was created in the 19th century not…

The noble gases are the group of elements which are like no other elements. The noble gases are the elements grouped as the last group, group 18. These elements, from smallest to greatest atomic mass, are Helium, Neon, Argon, Krypton, Xenon, and Radon. Group 18 wasn't always called the noble gases. this group used to be called the inert gassses. They changed the name of thisi group because they are not always inert, or chemically inactive. the first element in this group is the element…

5-CinthiaV-Selenium The name of my element is Selenium. The element symbol is “Se”. Selenium was discovered in Sweden by Jons Jacob Berzelius in 1817. Selenium is an origin for a greek word meaning moon. Selenium has four energy levels. In the first energy level, it has two electrons. The second energy level has eight electrons. The third energy level has 18 electrons. The fourth energy level has six valence electrons. Selenium has forty-five neutrons. Selenium has the…

Eric Scerri starts his book off by talking about a few people and describing what they did, and how they contributed to chemistry/periodic table. One person being John Dalton who developed what is known to be modern atomic theory. Another being…

My Element is the Most Important Element (Argon) •Atomic mass 39.948 •Atomic Number -18 •Gas at 298 K •Density-0.0017837 grams per cubic centimeter •Third Noble gas •Chemical Symbol-Ar •It is also obtained from the air as a byproduct of the production of oxygen and nitrogen •It is the third most atmospheric gas •Argon is colorless and odorless •Argon is non reactive and has no effect on living organisms •Makes up 1% of the air around •Argon is found in the earth’s crust…

Paragraph 1 The structural evolution of FePO4 studied from a temperature range of 294K to 1073K by neutron powder diffraction. It is unique from α-quartz isotopes. It is different because it’s a cation is a transition metal. The structure dimensions and atomic coordinates in the α phase tend to increase by great amounts as the high-temperature β-phase rises and exhibit first order transition at 980K. The atomic structure dimensions of the α-phase FePO4 increased in a non-uniform pattern with…