Answer:
Nucleus
Step-by-step explanation:
The Heisenberg Uncertainty Principle explains why electrons do not fall into the nucleus of an atom. The principle specially states that the product of the uncertainty of position and the uncertainty of momentum is greater than or equal to Planck's reduced constant divided by two.
Nucleus :)
An electron will only react with a proton in the nucleus via electron capture if there are too many protons in the nucleus.
I also learned this in freshman year in high school for biology.
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