Problem: Closely examine the following diagram representing the beta decay of fluorine-21 and write the missing nucleus.

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We are being asked to identify the missing isotope in the nuclear reaction given.

 F921  ?+ e-10


Heavy (large atomic mass) elements undergo radioactive reactions  (nuclear reactions) in order to increase the stability of their nuclei. 

• In a radioactive decay or emission reaction:

the radioactive particle is ejected from the nucleus
forms a product.  

• A beta decay or beta emission 

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Problem Details

Closely examine the following diagram representing the beta decay of fluorine-21 and write the missing nucleus.The reaction of the beta decay of flourine twenty one. The initial nucleus has a mass of twenty one and an atomic number of nine. The products include an electron and an unknown nucleus.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Beta Decay concept. If you need more Beta Decay practice, you can also practice Beta Decay practice problems.

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Based on our data, we think this problem is relevant for Professor Schmidt's class at PURDUE.