What is the chemical element selenium?
Discovery of Selenium:
Selenium was first discovered in 1817 by the Swedish chemist Jons Jacob Berzelius. Today, it is primarily used in pigments for ceramics and glass. It can give glass a red or brown tint.
Answer and Explanation: 1
The chemical element selenium is a reactive non-metal, meaning it is one of the non-metal elements found on Earth. Its chemical symbol is Se, and it has an atomic number of 34. Each chemical element has a unique symbol and atomic number. The atomic number is equal to the number of protons found in the nucleus of any atom of that element, regardless of the atom's isotope.
Learn more about this topic:
fromChapter 7 / Lesson 7
Learn about the chalcogen family of elements, their properties, chemical reactions, and uses.