L2.3 Formative: Atomic Structure

Math Response

Calculate the atomic mass of chlorine if the two common isotopes of chlorine have masses of 35.45 amu (75.00% abundance) and 37.29 amu (25.00% abundance).

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Correct Answer: 35.91

Deg^°

Rad

Math Response

Calculate the atomic mass of one of indium's isotopes (there are two) if the atomic mass of indium is 114.8200 amu and one isotope of indium has a mass of 114.9041 amu and an abundance of 95.795%.

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Correct Answer: 112.9041

Deg^°

Rad