Rubidium Has Two Naturally Occurring Isotopes

question 33

Multiple Choice

Rubidium has two naturally occurring isotopes.The atomic weight of Rb is 85.4678 u.If 72.15% of Rb is found as Rb-85 (84.9117 u) ,what is the mass of the other isotope?

• A) 0.56 u
• B) 85.68 u
• C) 86.91 u
• D) 86.02 u
• E) 83.47 u

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Illegal Trading

Unlawful transactions of goods or services that may involve insider trading, market manipulation, or trading of illegal items.

Equilibrium Price

The price at which the quantity of a good demanded by consumers equals the quantity supplied by producers, leading to market stability.

Equilibrium Quantity

The quantity of goods or services supplied that equals the quantity demanded at the market equilibrium price.

Shortage

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