What is the maximum wavelength of light that can ionize hydrogen in its ground state?

 123×10−7m.

Explanation:

neutrons are in the middle of the atom and the electrons, which are much smaller.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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