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Jet001 [13]
3 years ago
9

A radioisotope forms a stable isotope after it undergoes radioactive decay. Which is the best conclusion to draw from this state

ment?
A. It undergoes alpha decay. B. It undergoes beta decay. C. It does not participate in a decay series. D. It does not have a long half-life.
Chemistry
2 answers:
noname [10]3 years ago
8 0

Answer:

C

Explanation:

because that's just the answer:)

Black_prince [1.1K]3 years ago
3 0

Answer:

C. It does not participate in a decay series.

Explanation:

From this statement, we can deduce that a radioisotope that forms a stable isotope after it undergoes radioactive decay suggests that it does not participate in a decay series.

  • It could have emitted any form of radioactive particles which can be alpha or beta.
  • We do not know if it has a long or short half life because the value is not given.
  • But since the radioactive decay in one step produces a stable isotope, we can conclude that it did not participate in a decay series.
  • A decay series involves a radioactive decay in multiple steps.
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Answer:

Mass = 112 g

Explanation:

Given data:

Mass of CO₂ produced = 90.6 g

Mass of oxygen needed = ?

Solution:

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Number of moles = 2.1 mol

Now we will compare the moles of  CO₂ and oxygen:

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                    2.1           :        5/3×2.1 = 3.5

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