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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