Ask Question
30 January, 06:25

Which of the following elements is a nonmetal? a. selenium (Se) b. yttrium (Y) c. barium (Ba) d. calcium (Ca) e. All of these are metals.

+4
Answers (2)
  1. 30 January, 06:31
    0
    a. Selenium

    Explanation:

    Selenium is a non metal but though rarely, it is considered to be a metalloid.

    (Metalloids are elements intermediate between metals and nonmetals and are known to have partly metallic and partly non metallic properties.)

    Selenium is in group 16 of the periodic table below sulphur and has average properties of the group elements above and below it in the periodic table ...
  2. 30 January, 06:52
    0
    The correct answer option is a. Selenium (Se).

    Explanation:

    From the given answer options, Selenium (Se) is the only element which is a non metal.

    It has the atomic number 34 with atomic weight 78.96. It is a member of the sulfur group of the non metallic elements and falls in period 4 of the Periodic table.

    Selenium has non metallic properties which are intermediate between the elements that lie above and below it in the Periodic table.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Which of the following elements is a nonmetal? a. selenium (Se) b. yttrium (Y) c. barium (Ba) d. calcium (Ca) e. All of these are metals. ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers