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jonny [76]
3 years ago
15

The decay of radium-226 produces an isotope

Chemistry
1 answer:
Korvikt [17]3 years ago
4 0

Answer:

 ²²⁶₈₈Ra → ²²²₈₆Rn + ⁴₂He  +⁰₀γ

Explanation:

This radioactive decay occurs when the unstable radium-226 atom wants to lose energy by emitting an alpha particle from its nucleus which is an helium nucleus with no electron. The radium (86) is transformed to radon(Rn) where the atomic number of radium (88) is reduced by two units into radon, Rn (86) and mass number reduced by 4 units.

The equation for the transformation is;

 ²²⁶₈₈Ra → ²²²₈₆Rn + ⁴₂He  +⁰₀γ  where

²²⁶₈₈Ra ---------radium-226

²²²₈₆Rn -------radon-222

⁴₂He ----------alpha particle

⁰₀γ ------------energy

Note that ⁴₂He can also be written as : ⁴₂∝

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3 years ago
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Answer:

This question is incomplete

Explanation:

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Considering the law of conservation of energy which states that energy can neither be created nor destroyed but can be transformed from one form to another. Looking at the example provided earlier for potential energy, a ball in its resting position (having a potential energy) when kicked will have a kinetic energy (which can be calculated with the formula provided earlier), hence

Total energy = potential energy (P.E) + kinetic energy (K.E)

This formula and the explanation above can be used to answer the completed question.

NOTE: There is no standard relationship between P.E and K.E. They could be directly or indirectly proportional depending on the circumstance.

5 0
3 years ago
How many atoms of Pb are there?
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