Strontium- is named after Strontian a small town in Scotland Atomic number- 38 Symbol- Sr Mass- 87.62 Density- 2.63 g/cm3 Melting point- 7770C Boiling point- 13820C State at room temp- In room temperature strontium is an alkaline earth metal. Alkaline earth metals are silvery‚ shiny and relatively soft metals‚ they are fairly reactive and they all occur in nature‚ but are only found in Compounds and minerals‚ not in their elemental forms. Solid strength- in a room temperature environment strontium
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Element name-Helium Element Symbol-He Atomic number-2 Group name or number- Part of the noble gases in group 18 Atomic mass (to nearest thousandth)-4.003 Number of protons-2 Number of neutrons-2 Number of electrons-2 Number of valence electrons-2 List of isotopes-He3 and He4 Electron Configuration-1s2 Discovered By-Pierre Janssen Year discovered-1868 Circumstances of discovery- Janssen discovered helium in 1868 when he was looking in a telescope when he found the yellow spectrum lines of helium
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Math Poems Sammy Square Sammy Square is my name My 4 sides are just the same Turn me around‚ I don’t care I’m always the same‚ I’m a square! Danny Diamond I am Danny Diamond I am like a kite But I’m really just a square Who’s corners are pulled tight Ricky Rectangle Ricky rectangle is my name My 4 sides are not the same 2 are short and 2 are long Count my sides‚ come along 1-2-3-4 Ollie Oval I am Ollie Oval A football shape is mine Some people think that I’m an egg But
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Paragraph 1: Quartz‚ also known as SiO2‚ has a tetrahedral structure that is similar to FePO4 under normal circumstances. However‚ there is the presence of a few differences. For FePO4‚ it’s a cation is a transition metal‚ unlike silicon which is a metalloid. This study summarises the changes in structure of FePO4 over a range of temperatures. Quartz belong to the trigonal crystal system‚ but not considered to be part of the rhombohedral lattice system. Both α- quartz and β-quartz are chiral crystal
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Physical science and chemistry: * Define ionization energy. Mention the factor that influence it * What are the hardware and the software of a computer * Explain the working of a laundry drier * What is new lards concept of octaves * What are inner transitions elements * What are transition elements * State the properties and uses of junction diode * What ph of solution * Explain planks exclusion principal * What is moderator give example * What is annealing
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MGMT 472 Homework assignment 2 1. According to the text‚ key ingredients for developing successful supply partnerships include all of the following EXCEPT: a. Personal relationships b. Individualized objectives c. Mutual benefits and needs d. Performance metrics 2. The combination of the purchase price of a good and additional costs incurred before or after product delivery can be referred to as: a. Total cost of acquisition b. Total cost of ownership c. Purchase requisition cost d. Total procurement
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Beryllium Beryllium is a stolid and atomic number 4. Beryllium atomic mass is 9.012182. Beryllium electrons pre shell are 1‚ 2. Beryllium is a chemical element with the symbol of Be. Beryllium was discovered by Louis Nicolas Vauquelin in 1797. Beryllium metal point is 2‚348 F. Beryllium is a steel gray and hard metal that is brittle. The discovery of beryllium was Louis Nicolas Vauquelin. Louis discovered beryllium in 1797. The place beryllium was discovered was in France. The metal was isolated
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DOWNLOADED FROM WWW.STUDIESTODAY.COM DOWNLOADED FROM WWW.STUDIESTODAY.COM d – AND f – BLOCK ELEMENTS Electronic Configuration of Transition Metal/Ions The d-block element is called transition metal if it has partly filled d-orbitals in the ground state as well as in its oxidised state. The general electronic configuration of transition metal is (n–1) d1–10ns1–2. Exceptions in electronic configuration are due to (a) very little engery difference between (n–1) d and ns orbitals and (b) extra stability
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Paulina Milewska Kurt Jooss’ The Green Table Expressionism can be described as a movement in the fine arts that emphasized the expression of inner experience rather than realistic portrayal‚ looking to obtain not objective reality‚ but the subjective emotions and responses that objects and events arouse in the artist. Several characteristics of expressionism are distortion‚ exaggeration‚ primitivism‚ and fantasy. “The Green Table‚” a ballet by Kurt Jooss‚ 1932‚ is an ideal example of expressionism
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The 12 Tables of Roman law Analysis As advanced civilizations developed throughout the world‚ a common trend was observed regardless of time and location. That trend was the development of a law and government. Each civilization developed some form of law‚ the Babylonians had Hammurabi’s Code‚ the Hebrew had Mosaic Law‚ and the Greeks had the Draconian Law. Although these were all great forms of law‚ one of the most important advances in legal history was the Romans and their development of the
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