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25 sie 2021 · Here are some interesting facts about selenium: Selenium gets its name from the Greek word "selene," which means "moon." Selene was the Greek goddess of the moon. Selenium has atomic number 34, meaning each atom has 34 protons. The element symbol of selenium is Se.
25 lis 2023 · Get facts about the element selenium, with symbol Se and atomic number 34. Learn about its properties, uses, health effects, and sources.
Selenium is a chemical element on the periodic table. Selenium is a nonmetal and can vary in color from black, gray to red. Selenium is named after Selene, the goddess of the Moon in Greek mythology.
26 maj 2022 · These element names and symbols worksheets help you practice identifying the one- and two-letter element symbols and the names of the elements of the periodic table. Worksheets include both questions and answers. Download, print, or work online using PDF, PNG, or Google Apps formats.
Selenium is a chemical element that was discovered by Jons Jacob Berzelius. Use this interactive online quiz and printable worksheet to make sure...
16 paź 2023 · Selenium is a chemical element. Its chemical symbol is Se and its atomic number is 34. It has 34 protons and 34 electrons and a mass number of 78.96. Selenium (selenium atoms only) has several different forms. They are called allotropes. The most stable of these is a dense gray semimetal (an element that is partially a metal and a nonmetal).
Selenium is a chemical element with symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and tellurium. It rarely occurs in its elemental state in nature, or as pure ore compounds.
