impact of chemical periodic table on human welfare
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"Our goal was to showcase contemporary research being pursued around the world, including U.S. Department of Energy-supported research at MSU, that's working to realize new approaches to photoinduced chemical processes," said James McCusker, MSU chemist and review author.
McCusker's contribution focused on the process of light absorption that incorporates elements from the so-called "transition block" of the Periodic Table. Compounds from this class are involved in everything from solar energy conversation to organic synthesis.
"The effective capture and use of sunlight -- an inexhaustible, globally accessible and pollution-free energy source -- is critical for replacing fossil fuels and in mitigating climate change," McCusker said. "In order to realize this goal, one of the key processes that must occur following the absorption of light is the transfer of electrons, similar to what plants do in photosynthesis."
But unleashing this capability has proved challenging. That's due, in part, to the fact that the compounds that are very effective at converting light into useable charge require the use of some of the least-abundant elements on the planet. Take for example ruthenium and iridium, which are widely employed in chromophores that can carry out these light-enabled chemical processes.
"Ruthenium is one of the five or six least-abundant elements in Earth's crust and is simply not a viable option as the light-harvesting component for a globally scaled problem like solar fuel production," McCusker said. "We need to find replacements that are abundant on Earth, such as iron, to make global scalability possible. This is not an engineering or manufacturing problem, but one of fundamental science that has its origins in the very concepts that Mendeleev uncovered when he constructed the periodic table."
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Answer:
The periodic table of chemical elements has impacted greatly on human welfare in various ways.
It has helped scientists to discover what elements are needed for human survival.
The periodic table outlines clearly all the chemical elements that have been proven to be useful to mankind.
a) Oxygen for example as an element on the periodic table is used by mankind in various spheres of life including hospitals on patients who have breathing problems.
b) Nitrogen element has impacted greatly in the chemical industry. It is used in the manufacture of fertilizers, dyes and explosives.
c) Sodium element is useful in the human body. It helps body cells transmit nerve signals and regulate water levels in tissues and blood.