An Unknown Element Is Found to Have Three Naturally Occurring

question 244

Multiple Choice

An unknown element is found to have three naturally occurring isotopes with atomic masses of 35.9675 (0.337%) , 37.9627 (0.063%) , and 39.9624 (99.600%) . Which of the following is the unknown element?

• A)Ar
• B)K
• C)Cl
• D)Ca
• E)None of the above could be the unknown element.

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Definitions:

N

Typically represents the sample size, or number of observations or participants, in a study or statistical analysis.

Individual Score

The specific value or outcome obtained by an individual in a test or assessment.

Σ

Represents the mathematical symbol for summation, indicating the addition of a sequence of numbers.

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data, often the mean, median, or mode.