How big is a platinum atom?
Here are the answers for all the students that answered this question.
Just so you know, the answer was around 2.47 x 10^-10 m. That would correspond to a value above of ln(2.47×10^-10) = -22. Yes, I know I cheated on the units for this graph. A few of you had answers that were bigger than the size of the Earth. Here are some helpful things to keep in mind when you get an answer:
- The calculator is not always right. Just because it is electronic does not mean that it is absolutely correct.
- An atom is on the order of 10^-10 m in diameter. This is something useful to recall.
- A person is typically around 1-2 meters.
- The distance across the USA is around 4 x 10^3 m
- The diameter of the Earth is around 10^7 meters.
- The distance to the sun is around 10^11 meters.