daana1315
daana1315
11-03-2021
Chemistry
contestada
What period is promethium (Pm) in?
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destinyis13
destinyis13
11-03-2021
Answer:
6
Explanation:
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missv117
missv117
11-03-2021
period: 6
block:f
atomic number:61
state at 20 degrees Celsius: solid
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