Problem 2 Part A An element has four naturally occurring isotopes with the masse

Question

Problem 2

Part A

An element has four naturally occurring isotopes with the masses and natural abundances given here. Find the atomic mass of the element.

Express your answer to four significant figures and include the appropriate units.

amu

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Part B

Identify the element.

Spell out the full name of the element.

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Isotope Mass (amu) Abundance (%) 1 89.90470 52.93 2 90.90565 11.54 3 91.90504 17.65 4 93.90632 17.88

Explanation / Answer

89.90470x(0.5293)+90.90565x(0.1154)+91.90504x(0.1765)+93.90632x(0.1788)=91.0887amu.

Element is Zirconium

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