Naturally Occurring Element X Exists in Three Isotopic Forms: X-28

question 22

Multiple Choice

Naturally occurring element X exists in three isotopic forms: X-28 (27.979 amu,92.21% abundance) ,X-29 (28.976 amu,4.70% abundance) ,and X-30 (29.974 amu,3.09% abundance) .Calculate the atomic weight of X.

• A)29.09 amu
• B)28.09 amu
• C)35.29 amu
• D)86.93 amu
• E)25.80 amu

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Definitions:

Biological Variables

Factors related to or deriving from organisms, which can influence experiments, studies, or outcomes in biological or medical research.

Heritable

Traits or characteristics that can be passed from parents to their offspring through genes.

Encouragement

The action of giving support, confidence, or hope to someone.

Socioeconomic Status

An individual or group's economic and social position in relation to others, based on income, education, and occupation.