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cupoosta [38]
3 years ago
5

Copper has two naturally occurring isotopes: Cu-63 with mass 62.9395 amu and a natural abundance of 69.17% and Cu-65 with mass 6

4.9278 amu and a natural abundance of 30.83%. Calculate the atomic mass of copper.
Chemistry
1 answer:
svetlana [45]3 years ago
5 0

Answer

63.55

Explanation:

63

C

u

 has

69.2

%

abundance.

65

C

u

has

30.8

%

abundance.

So, the weighted average is

62.93

×

69.2

%

+

64.93

×

30.8

%

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Answer:

A. electrons simultaneously attracted by more than one nucleus

Explanation:

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<u>So, the correct answer is:- A. electrons simultaneously attracted by more than one nucleus</u>

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IgorLugansk [536]

<u>Answer:</u> No crystals of potassium sulfate will be seen at 0°C for the given amount.

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Explanation:

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