How Many Atoms of Each Element Are There in the Compound

question 66

Multiple Choice

How many atoms of each element are there in the compound Na₃(PO₄) ₃?

• A)sodium 3, phosphorus 3, oxygen 12
• B)sodium 9, phosphorus 3, oxygen 12
• C)sodium 3, phosphorus 1, oxygen 4
• D)sodium 3, potassium 1, oxygen 4
• E)sodium 9, potassium 3, oxygen 12

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values diverge from the mean.

Normal Distribution

A type of continuous probability distribution for a real-valued random variable, characterized by a bell-shaped curve, symmetrical around its mean.

Variance

A measure of the dispersion indicating how much the numbers in a data set differ from the mean of the set.

Normal Distribution

A symmetric, bell-shaped distribution of data where most of the observations cluster around the central peak and the probabilities for values further away from the mean taper off equally in both directions.