The First 20 Elements- Fully Explained

First Twenty Elements 1. Hydrogen-Hydrogen (H) is a neutral, odourless, non-metallic, tasteless, highly flammable diatomic gas. nuclear build 1 and commode tally 1 . notice by heat content Cavendish in 1766. 2. Helium-Helium (He) is a colourless, odourless, tasteless, non-toxic, idle monatomic chemical cistron that heads the noble gas concourse in the periodic table. atomic topic 2 and aggregative fare 4. discover by Pierre Janssen and Norman Lockyer in 1868. 3. Lithium-Lithium (Li) is a silvery white, slow metal, very responsive chemically, divisions Li O and LiCl readily. In path temperatures, it is the least dense metal. atomic sum 3 and hoi polloi issuance 7. discovered by Johan noble-minded Arfwedson in 1817. 4. Beryllium-Beryllium (Be) is a colourize metal, much harder than lithium, sanely reactive chemically, forms BeO and BeCl. atomic act 4 and fold keep down 9. Discovered by Louis-Nicolas Vauquelin in 1798 5. Boron-Boron (B) is a yellow or brownish non-metal, very hard element, not very reactive, still forms B O and BCl. Atomic number 5 and mass number Discovered by Jöns Jakob Berzelius in 1824. 6. carbon-Carbon (C) is a erosive non-metal, brittle, non-reactive at room temperature. Forms CO and CCl. Atomic number 6 and mass number 12.

Carbon was discovered in prehistory and was known in the forms of dirty word and charcoal to the soonest gentleman civilizations but Vandermonde then showed that this aggregate was carbon 7. Nitrogen-Nitrogen (N) is a colourless gas, not very reactive, will form N O and NH Atomic number 7 and mass number 14. Discovered Daniel Rutherford in 1772. 8. Oxygen- Oxygen (O) is a dull gas, moderately reactive,will connect with intimately elements, forms carbon dioxide and MgO. Atomic number 8 and mass number 16. Discovered by Carl Wilhelm Scheele. 9. atomic number 9- Fluorine (Fl) is a green-yellow gas, extremely reactive, pestilent to smell, forms NaF and MgF. Atomic number 9 and mass number 19. Discovered by Henri Moissan...If you want to loll around a extensive essay, ordain it on our website: Ordercustompaper.com

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