As helium will not act to either borrow or loan out electrons, it is said to be chemically inert. Helium, a chemical element with the symbol He and atomic number 2, is a colorless, odorless, tasteless inert gas.It is the second lightest and abundant chemical species after hydrogen. The seven elements—helium, neon, argon, krypton, xenon, radon, and oganesson—of Group 18 of the periodic table. Which of the following elements belong to the d-block of the periodic table? It won't even form a diatomic molecule with another atom of its own kind, as the other gaseous elements do (except the other inert gases). This shell contains another spherical s orbital and three “dumbbell” shaped p orbitals, each of which can hold two electrons, as Figure 2.8 shows. Hydrogen and helium are the only two elements that have the 1s and no other electron orbitals in the electrically neutral state. It’s a surprising finding, he says, because, on Earth, helium is a chemically inert and unreactive compound that eschews connections with other elements and compounds. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Learn more about noble gases with this article. On the other hand there are many stable molecules created by heavier noble gases (mainly xenon) with other elements. Credit: Ivan Popov. The first of the noble gases, helium features an extremely stable, closed-shell electronic configuration, leaving no openings for connections. It has the lowest boiling point among the elements in the periodic table. chlorine bromine iodine sulfur 3. Students attentive to Utah State University professor Alex Boldyrev's introductory chemistry lectures would immediately respond "no." sodium argon calcium oxygen 2. Which of the following is a brittle solid? Normally none as helium is an Inert Gas which does not react with other elements. It will not react with other elements. All of the noble gases are present in Earth’s atmosphere and are colorless, odorless, tasteless, and nonflammable. Noble gases are a unique set of elements in the periodic table because they don't naturally bond with other elements. Can helium bond with other elements to form a stable compound? Yet, under high pressure, such as conditions found at the Earth’s core or on larger planets, it does, say USU researchers. It is used instead of nitrogen because it will not dissolve in the blood and will leave the human body quicker. It is often mixed with oxygen in scuba air tanks to dilute the oxygen. These atoms are stable and very rarely form bonds with other atoms. Nature Chemistry – A stable compound of helium and sodium at high pressure Image depicting structure formed by helium and sodium. Start studying Chapter 11: Elements and Chemical Bonds. Atoms of these elements (e.g., helium, krypton, neon) have full outer electron shells. 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