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What element has 81 protons in the nuclei of its atoms?

A. Platinum
B. Uranium
C. Lead
D. Thallium

2 Answers

6 votes

Thallium has 81 protons in the nuclei of its atoms.

answered
User Ragesh Kr
by
8.6k points
3 votes
Thallium has got 81 protons

Have a nice days.......
answered
User Clevison Luiz
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