Final answer:
A person is far closer in size to the Moon than to an atom. Atoms are measured in picometers, while the Moon is thousands of kilometers in diameter. In a scale model, an atom's nucleus would be almost undetectably small, emphasizing the huge size differences.
Step-by-step explanation:
A person is much closer in size to the Moon than an atom. If we think about size scales, atoms are incredibly small compared to human beings. An atom is typically measured in picometers (10-12 meters), with a hydrogen atom being approximately 120 pm in diameter. In contrast, the Moon has a diameter of about 3,474 kilometers (2,159 miles).
To put this in perspective, building a scale model can help illustrate the vast size differences. If we built a scale model of a hydrogen atom where the atom's diameter is 1 meter, the nucleus would be a mere pinpoint, almost impossible to create accurately because a typical nucleus is only a few femtometers across (where a femtometer is 10-15 meters). In reality, if we scale up an atom to the size of a mid-sized campus, the nucleus would likely be only as large as a small marble or even smaller.
When comparing these scale models to the scale model of the solar system, where Earth is the size of a grape and the Moon is the size of a pea orbiting at a distance of 40 centimeters, it's clear that a person's size is insignificantly small compared to the Moon but vastly larger than an atom or its nucleus.