The Periodic Table of the Chemical Elements
The central organizing principle of chemistry, the periodic table was first published 150 years ago. Dmitri Mendeleev developed a table that reflected how properties of the elements repeated in regular intervals. This periodicity suggested properties of elements yet to be discovered. The discovery of Gallium five years after the publication of Mendeleev’s table validated these findings.
The elegance of the periodic table’s design and its predictive power inspired many chemist to study and discovers many new elements. The periodic table is not a closed subject, new elements are being investigated and there is current debate about the placement of some elements.
1.Hydrogen 2. Helium 3. Lithium 4. Beryllium 5. Boron 6. Carbon
7.Nitrogen 8.Oxygen 9.Fluorine 10.Neon 11.Sodium 12.Magnesium
13. Aluminium 14. Silicon 15. Phosphorus 16. Sulphur 17. Chlorine
18. Argon 19. Potassium 20. Calcium
Chemistry: The Periodic Table of the Elements. Potassium November 30, 2020Potassium is vital for almost all living thing, except for some prokaryotes. Plant growth requires potassium as a cofactor…
Chemistry: The Periodic Table of the Elements. Argon October 11, 2020The element Argon is named after the Greek God Argos meaning idle, inactive; this is because Argon has its outer ... Chemistry: The Periodic Table of the Elements. Chlorine September 27, 2020Chloride (Cl-) is essential to many species and it is required for many biochemical and functional functions. For example, hydrochloric ... Chemistry: The Periodic Table of the Elements. Sulphur August 25, 2020Before oxygen was available on Earth, for billions of years, sulphur was the element used by bacteria and archaea for….
Chemistry: The Periodic Table of the Elements. Nitrogen May 31, 2020The atmosphere is composed of 78% nitrogen however it cannot be used to form compounds because it is inert…
Chemistry: The Periodic Table of the Elements. Phosphorus May 31, 2020Phosphates are the most common form of phosphorus on Earth and consist of phosphorous bounded to atoms of oxygen…
Chemistry: The Periodic Table of the Elements. Silicon April 26, 2020The Earth crust is composed of 28% silicate minerals. The great variety of rocks made of silicon is due to ... Chemistry: The Periodic Table of the Elements. Aluminum March 30, 2020Aluminum is the most abundant metal in the Earth’s crust. In its pure state, aluminum is…..
Chemistry: The Periodic Table of the Elements. Magnesium February 29, 2020Magnesium is a very important element for life, it is involved in photosynthesis; the….
Chemistry: The Periodic Table of the Elements. Sodium February 24, 2020Sodium is an essential element for life, it is required for neuronal transmission, for proper kidney filtration, to maintain….
