What is the atomic number and symbol of zinc?
Zinc holds atomic number 30 on the periodic table and carries the symbol Zn. It sits as the first element in group 12 also known as IIB.
Questions about Zinc
Short answers, pulled from the story.
When was pure metallic zinc first isolated by scientists?
Andreas Sigismund Marggraf isolated pure metallic zinc in Germany in 1746. He heated a mixture of calamine and charcoal in a closed vessel without any copper present.
Which countries produce the most zinc today?
China produced four million tonnes of zinc in recent years while Peru followed with approximately 1.4 million tonnes. Australia contributed around 1.1 million tonnes to global production totals.
How does zinc deficiency affect human health and mortality rates?
Nearly two billion people in developing nations suffer from zinc deficiency according to health surveys. Children face increased infection risks and diarrhea contributing to approximately 800,000 deaths annually.
Why did the FDA remove zinc-based intranasal cold products in June 2009?
The FDA ordered removal of zinc-based intranasal cold products from store shelves in June 2009 due to loss of smell resulting from these products. This condition can be life-threatening for consumers who lose their sense of smell.