An electron cannot reside inside a nucleus is explained by:
Correct answer: D. Uncertainty principle
- A. Compton effect
- B. Photoelectric effect
- C. Zeeman effect
- D. Uncertainty principle
Explanation
The Uncertainty Principle (also called the Heisenberg uncertainty principle or indeterminacy principle) was articulated by the German physicist Werner Heisenberg in 1927, and it stated that the more precisely the position of a particle is known the more uncertain the momentum is and vice versa. The Heisenberg Uncertainty Principle explains why electrons do not fall into the nucleus of an atom. The principle especially 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.The diameter of the atomic nucleus is of the order of 10-15mTherefore, for an electron to exist inside the nucleus the maximum uncertainty in the position of an electron is 10-15m
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