1 yoctometer = 1 x 10^-24 meter = 0.000 000 000 000 000 000 000 001 meter
To the extent that electrons and protons behave like little, hard billiard balls, the diameter of
an electron is in the neighborhood of 100 yoctometers, and of a proton, 100,000 yoctometers.
The diameter of a penny is 3/4 inch, 19.05 millimeters, 19,050,000,000,000,000,000,000 yoctometers.
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I am nt sure that such a number exists. Yocto is a prefix for 10-24 ie a septillionth. So the question seems to be asking for the number of 0s in a septillionthillion!
There is no yoco- prefix. But there is a yocto- prefix which is equal to 10-24 so that is the smallest.Of the prefixes that are correctly written in the question zeptogram is the smallest (10-21 gram)
That's called a square meter.
a cubic meter is one meter cubed or to the 3rd power.
kength of a meter