A newly discovered element called Adamantium has 3 known isotopes. The isotopic mass and abundances are: Adamantium-87, 45.2%,

Question

A newly discovered element called Adamantium has 3 known isotopes. The isotopic mass and abundances are:
Adamantium-87, 45.2%, Adamantium-88, 43.1% and Adamantium-91, 11.7%
What is the atomic mass of Adamantium that would be seen on the Periodic Table to one decimal place?

Kunduz · Accepted Answer

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