Abundance of the chemical elements

The Purification of a Gem (Topic 2) A rough, dull gemstone is put inside a scorching, blazing furnace, which breaks down its flesh, melting and refining its impurities. Through this excruciating process, a strong and beautiful gem is born to serve a variety of meaningful purposes--from becoming a gift for someone we cherish to being used as a healing stone. There is no better expression for the turbulent time of childhood and adolescence that have made me who I am today. The past twenty years were a time of great struggle and perseverance, which have made me stronger and more humble. The process was agonizing, but in the seemingly endless dark tunnel, I believed that my family was growing and that God would put together all the trials and hardships into something good. The origin of the problem was my family. My mother developed severe depression from her painful relationship with my father, both struggling with their own unsettled scars of childhood. Countless events drove my family to the edge of a precipice. My mother attempted suicide multiple times, and I vividly remember the ambulance sirens, police cars, and intensive care unit in the emergency room. My house was so unstable that it was like a ship violently rocking back and forth in the middle of a dark ocean, on the brink of being shipwrecked, broken, and lost... On these devastating days, all I could do was pray with my rosary in one hand and a handkerchief in the other for my broken heart. It is a miracle that…

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abundant elements together 98 percent of the 8 elements form the mass of the earth’s crust, ocean and atmosphere. Two of the most abundant elements of the eight are calcium and magnesium. Calcium and magnesium are located on the periodic table located both in group 2 sharing the same family meaning that they share chemical property’s as well as the same valence electron because of their location and family relation to the period table. The alkaline metals are a reactive group of metals and…

The human body is mainly made up of four elemental components: oxygen (65%), Carbon (18%), Hydrogen (10%), and Nitrogen (3%). It is also composed of about 28 other elements including, Potassium, Sodium, and Calcium. Each plays a major role on the daily functions of the human body. Oxygen accounts for roughly about two-thirds of the mass of the human body and is use in cell respiration. Carbon is part of the molecular structure in certain fats, proteins, and carbohydrates; which are essential…

Atomic mass: the mass of an atom of a chemical element expressed in atomic mass units; approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes Molar mass: a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance Mole: the amount of a substance contained in 6.02 x 10²³ particles of that substance…

years helium was known as an element that might exist on the sun but unknown on the Earth. Sir William Ramsay discovered helium after treating a uranium mineral. Lockyer and Professor Edward Frankland suggested the name helium. A sample of the gas was sent to Sir William Crookes and Sir Norman Lockyer who identified helium.The name is derived from the Greek 'helios' meaning sun, as it was in the sun's corona. Helium is a gaseous chemical element,with a symbol of He. Its atomic number is 2 and…

Gadolinium 's element symbol is Gd with an atomic number of sixty four. Its atomic weight is 157.25 AMU. It is grouped with the Lanthanides, it has a melting point of 1313 degrees Celsius and it has a boiling point of 3273 degrees Celsius. Gadolinium is a soft silvery metal that reacts with oxygen and water. In nature the element occurs as a mixture of six stable isotopes gadolinium 158, 160, 156, and 157,155,154,152. The Gadolinium-157 isotope has the highest thermal neutron capture…

Research Paper by Brian Zhang 805 If you ever happened to unnerve a grumpy skunk, then you would have understood the severe atrocity of its scent firsthand. What you probably didn't realize, however, concerns the fact that sulfur holds much blame for the nasty occurrence. In fact, this mother of repulsive odors earns its spot on the periodic table as one of the world's 118 chemical elements, or substances that contain only one type of atom. Much like any other non-metal, it does not…

The atomic number to my element is 11, the mass number is 23, the number of neutrons is 12, the protons are 11 and the electrons are also 11, the electron configuration of my element is 1s22s22p63s1. The person who discovered my element is Humphry Davy. He discovered sodium in 1807. Origin of sodium is derived from the English word ‘soda’. The appearance of sodium is soft metal that tarnishes within seconds of being exposed to the air. It also reacts vigorously with water. Used as a…

believed that stars were composed of the same identical elements that are present on Earth. The shared belief of physicists at the time was, “what we know here, must be true out there.” This changed in the 19th century when the use of spectrography arose. Spectrography was first developed by scientists when they realized that if they could direct a beam of light through a medium like a gas and separate it into a spectrum, that certain wavelengths of color would be missing from…