Science, asked by pt998233gmailcom, 5 months ago

1.The average atomic mass of copper is 63.5u. It exists as two isotopes which are Cu63 & Cu65. Cal culate the %age of each atom present in it. *
2 points
20% & 80%
75% & 25%
25% & 75%
80% & 20%

Answers

Answered by chinumoh

1

Explanation:

l think the answer is 75%and 25%

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