Naturally occurring copper exists in two isotopic forms: ⁶³Cu and ⁶⁵Cu.The atomic mass of copper is 63.55 amu.What is the approximate natural abundance of ⁶³Cu? A)63% B)90% C)70% D)50% E)30%

Question

Quizplus · Accepted Answer

The atomic mass of copper (63.55 amu) is closer to the mass of ⁶³Cu, indicating that ⁶³Cu is more abundant. Calculating the weighted average suggests approximately 70% abundance for ⁶³Cu.

Naturally Occurring Copper Exists in Two Isotopic Forms: 63Cu and 65Cu.The

Naturally Occurring Copper Exists in Two Isotopic Forms: ⁶³Cu and ⁶⁵Cu.The