Titanium Titanium is a transition metal that was discovered in the year 1791 by an English pastor named William Gregor. The discovery was made when Gregor was by a Stream in the parish of Mannacan in Cornwall‚ England and found black magnetic sand. When Gregor analyzed this sand‚ he found out it was made up of the oxides of iron and an undefined and yet undiscovered metal.
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CLASSIFICATION OF ELEMENTS Introduction There are 115 elements that are known at present. Some elements have similar properties whereas some others have completely contrasting properties Scientists began to look for some pattern in the properties of these elements Dobereiner’s triads In 1817‚ Johann Wolfgang Dobereiner‚ a German chemist‚ classified elements into groups based on their properties. He kept all elements having similar properties in one group. Most of his groups had three elements each. Thus
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Synopsis of: Elements of Life Your body is made of elements‚ like everything else in the world‚ even the universe. Amazingly about 97% of our bodies are made up of only four elements‚ oxygen‚ carbon‚ hydrogen‚ and nitrogen. The other 3 percent is filled with 20 other elements‚ which are needed to live. Some of those elements are calcium‚ phosphorus‚ potassium‚ sulfur‚ sodium‚ magnesium‚ and many more. In the circulatory system‚ two elements that are critical to the circulatory system are iron
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Atoms‚ Molecules and Elements Atoms‚ molecules and elements are the building blocks of everything we can see‚ hear‚ and touch. Though not visible to the naked eye‚ it is the combination of millions of these tiny substances that make us who and what we are today. Many elements make up the world around us‚ and each element reacts differently to its surroundings. The definition of reactivity as pertained to chemistry states‚ “The relative capacity of an atom‚ molecule‚ or radical to undergo a chemical
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Amanda Patterson Mineral Commodity Sulfur Sulfur is a nonmetallic element that was founded in 1777 by Antoine Lavoisier. The element falls in the sixteenth group of the periodic table. Sulfur’s symbol is S and it’s atomic weight is 32.064 grams. Sulfur is derived from Sanskrit Sulrive and the Latin word Sulphurium. Sulfur is a yellow nonmetallic element that has no odor and no taste. Sulfur is a critical raw element that industrial nations use for certain processes and of course for production
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Atoms‚ Molecules‚ and Elements CHM/110 William De Vorick June 30‚ 2014 Atoms‚ Molecules‚ and Elements Demetri Mendeleev was trying to organize the elements into a table by weight when he noticed that as the weights increase occasionally the properties of one element would resemble those of an element he already listed so he placed these elements in a column under the ones they resembled chemically ( Capri‚ PhD‚ 2003). Each chemical in the vertical rows on the periodic table are considered
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1. America’s first trained nurse. -LINDA A. J. RICHARDS 2. The first bird domesticated by man. -ROCK DOVES 3. What method of arranging elements into related groups was invented by dimitri Mendeleyev -PERIODIC ARRANGING 4. What’s short for "Light Amplification by Stimulated Emission of Radiation"? LASER 5. What ya‚ Sohaira M. COMP FNDis the only domesticated animal not mentioned in the bible? -CAT 6. What is the longest river in the world? -NILE RIVER 7. What’s
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Janelle C. Gajardo IV-1 Mrs.Dimacutac December 5‚ 2011 Elements in the Periodic Table Trivia l Actinium (Ac) - radioactive element found in uranium ores‚ used in equilibrium with its decay products as a source of alpha rays.The name originates from the Greek word ’aktinos’ meaning ray or beam. l Argon (Ar) - they don’t often interact with other elements. This caused early mappers of the periodic table‚ such as Dmitri Mendeleev‚ to think of them as proud and noble. l Carbon (C) - can
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The element (einsteinium) has the atomic symbol of Es. Its atomic number is 99 while its atomic mass is 252. Einsteinium is located in period 7 of the periodic table as a part of the actinide series. It has 99 protons‚ 99 electrons‚ and 153 neutrons in its atoms. The physical appearance of einsteinium is not known‚ but it is predicted to be metallic and silvery white or grey. Einsteinium is classified as a metal and is a solid at room temperature. It has a melting point of 860°C and an atomic radius
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Scandium is an element on the periodic table. Its atomic number is 21. Its atomic symbol is Sc. It has a silvery white color. It is classified as a metallic. Its group on the periodic table is 3. Its atomic mass is 45. Its melting point is 1541 Celsius. Its boiling point is 2836 Celsius. Its atomic is 216 pm. These a really interesting element. Scandium was discovered in Scandinavia in 1878. It was discovered by a man named Nilson. There is two metals that scandium has that were only found in Scandinavia
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