Answer:
Caesium: Period-6 Group-1
Iodine: Period-5 Group-17
Bromine: Period-4 Group-17
Astatine: Period-6 Group-17
Bismuth: Period-6 Group-15
Radon: Period-6 Group-18
Magnesium: Period- 3 Group-2
Iron: Period-4 Group-8
Phosphorus: Period-3 Group-15
Explanation:
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Answer:
Caesium: Period-6 Group-1
Iodine: Period-5 Group-17
Bromine: Period-4 Group-17
Astatine: Period-6 Group-17
Bismuth: Period-6 Group-15
Radon: Period-6 Group-18
Magnesium: Period- 3 Group-2
Iron: Period-4 Group-8
Phosphorus: Period-3 Group-15
Explanation: