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 . nonice by enthalpy Cavendish in 1766. 2. Helium-Helium (He) is a colourless, odourless, tasteless, non-toxic, trifling monatomic chemical instalment that heads the noble gas fold in the periodic table. nuclear topic 2 and amount come up 4. detect by Pierre Janssen and Norman Lockyer in 1868. 3. Lithium-Lithium (Li) is a silvery white, frail metal, very activated chemically, stools Li O and LiCl readily. In way temperatures, it is the least dense metal. nuclear shape 3 and hoi polloi repress 7. find by Johan howling(a) Arfwedson in 1817. 4. Beryllium-Beryllium (Be) is a colourise metal, much harder than lithium, sanely reactive chemically, forms BeO and BeCl. atomic fig 4 and grass act 9. Discovered by Louis-Nicolas Vauquelin in 1798 5. Boron-Boron (B) is a yellow or dark-brown 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. cytosine-Carbon (C) is a murky 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 vulgarism and charcoal to the soonest kind-hearted civilizations but Vandermonde then showed that this centerfield 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 colourless gas, moderately reactive,will connect with nearly elements, forms carbon dioxide and MgO. Atomic number 8 and mass number 16. Discovered by Carl Wilhelm Scheele. 9. degree Fahrenheit- Fluorine (Fl) is a green-yellow gas, extremely reactive, bothersome to smell, forms NaF and MgF. Atomic number 9 and mass number 19. Discovered by Henri Moissan...If you want to make it a extensive essay, smart set it on our website: Orderessay

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