Select the Group of Symbols That Would Correctly Complete the Following

question 57

Multiple Choice

Select the group of symbols that would correctly complete the following statements, respectively.___ is the heaviest noble gas.___ is the transition metal that has 24 electrons as a 3+ ion.___ is the halogen in the third period.___ is the alkaline earth metal that has 18 electrons as a stable ion.

• A) Rn, Cr, Br, Ca
• B) Ra, Sc, Br, K
• C) Ra, Co, Cl, K
• D) Rn, Co, Cl, Ca

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