somewhere around 4*10^184 planck cubes could fit in the obervable universe and those are a lot smaller than electrons. So that number would be somewhere between a googol and this number.
3 rhombuses will fit into one Hexagon...so it would be 20x3
it is 1736
72
A meter stick is 100cm, therefore 20 pencils would fit on a meter stick.
A googolplex people could definitely fit in the universe. Googolplex, while a very large number, is also finite. There is a good chance the universe is infinite, depending on which model you follow. The observable universe (the part with light in it), however, is about 93 billion light years wide. If we assume that the average human is about a foot wide (from chest to back, not shoulder to shoulder), and six feet tall, then 4.01 * 1081 humans could fit in the universe. This is no where near googolplex, so your answer would differ depending on your definition of the universe. Note: my calculations involved assuming humans were about a 1*1*6 prism, and could be stacked right next to each other. Additionally, my estimation of the area of the universe is much larger than it actually is because it isn't a perfect cube, like I used in these calculations. However, because the number was so far short of googolplex, this estimation will do. For those of you who do not know what googolplex is, it is one followed by a googol zeros. Googol is one followed by a hundred zeros. So googleplex is 1010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
one
There can be 10 electrons in the n=2 shell. Two can fit in the 1s orbital, two can fit in the 2s orbital, and six can fit in the 2p orbital.
The second electron shell can hold a maximum of 8 electrons.
Inversely, 1836 electrons fit in a proton !
The number of atoms in the universe is estimated at 1078 to 1082. So the number of molecules would be smaller than this, obviously. Reference: http://www.universetoday.com/36302/atoms-in-the-universe/
Two electrons can fit in the first shell
The answer is not determinable both because scientists have not determined the exact volume of the universe and because the universe is always expanding.
eight
2
Well, there is a formula to figure out how many combinations of universes there would be that fit in the size of the observable universe. The formula is spacetimeatoms*elements and by working this out you would get 10 to the 225 power, factorial.
The first orbital shell can hold a maximum of 2 electrons.
8 (2s2, 2p6)