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Question : 76 of 100
Marks:
+1,
-0
Solution:
Among all four options,
Selenium is not a metal and it has been named after the Greek goddess of the moon "Selene".
- The Selenium belongs to the Non-Metal Category as it is found in Group 16(chalcogens) and Period 4 of the Periodic Table with Atomic number 34.
- It was discovered by Jons Jacobs Berzelius in 1817 who was a Swedish Chemist and also considered as one of the founders of Modern Chemistry.
- Jacobs Berzelius has also discovered Cerium( Atomic Number-58) lying in the Lanthanide Series of f-block elements.
- Selenium resides in the Solid-phase at STP whereas its Melting point is 494K & its Boiling Point is 958K.
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