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Q. What is the electron configuration of Radium?
Answer: 7s2
Notes: Radium is a chemical element with the symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals.The electron configuration (short form) of radium is [Rn]7s2 .

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Question Number: 12 in General Studies Mock Test - 55 in above course in App.