Lithium Has Two Naturally Occurring Isotopes,⁶Li and ⁷Li

question 39

Multiple Choice

Lithium has two naturally occurring isotopes,⁶Li and ⁷Li.The atomic weight of lithium is 6.941.Which of the following statements concerning the relative abundance of each isotope is correct?

• A) The abundance of ⁷Li is greater than ⁶Li.
• B) The abundance of ⁷Li is less than ⁶Li.
• C) The abundance of ⁶Li is equal to the abundance of ⁷Li.
• D) Not enough data is provided to determine the correct answer.
• E) Based on the atomic mass,only ⁷Li occurs naturally.

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