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ASHA 777 [7]
2 years ago
11

I need help with this question. Thank you.

Chemistry
1 answer:
marishachu [46]2 years ago
3 0
There are 76 atoms in total
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If the half-life of a radioactive substances is 590 million years and you have 40 atoms of it, how many half-lives will have pas
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Answer:

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Explanation:

Applying,

2^{n'} = R/R'............... Equation 1

Where n' = number of halflives that have passed, R = Original atom of the substance, R' = atom of the substance left after decay.

From the question,

Given: R = 40 atoms, R' = 5 atoms

Substitute these values into equation 1

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11. The oxyfuel flame was used for fusion welding as early as the first half of the
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<u>Explanation:</u>

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