How heavy iron really is?

Chemistry Level 2

The following are the percentage abundancies of isotopes of \(\ce{Fe}\) (atomic number- 26):

  • \(\ce{^{54}{Fe}} - 5\%\)

  • \(\ce{^{56}{Fe}} - 90\%\)

  • \(\ce{^{57}{Fe}} - 5\%\)

Calculate the atomic mass of \(\ce{Fe}\) in amu.

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