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2007-09-27 12:51:47 · 1 answers · asked by Caramel 2 in Science & Mathematics Chemistry

1 answers

Technetium, No. 43. Also, you may want to count promethium, No. 61.

2007-09-27 12:57:05 · answer #1 · answered by steve_geo1 7 · 1 0

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