Which of the samples contains the most atoms? Use evidence from the table to explain your answer.

Sodium/Na

Explanation: Molar mass is basically a measure of how heavy 6.02 x 10^23 atoms of a substance is, measured in grams.

So, if Sodium has the lowest molar mass then that means it’s molecules are very light. I’ll give a comparison: if you have 10 kilograms of bricks and 10 kilograms of feathers, will you have more feathers or bricks? Feathers, of course.

Mathematically it looks like this

50g/22.99g/mol = 2.17 mol

2.17 mol • 6.02 x 10^23 = 1.31 x 10^24 atoms

50g/58.93g/mol = 0.85 mol

You can see that as molar mass increases that the number of moles, and consequently, atoms, decreases.

Hope this helped

increased stability in the completion of fluorine's outer shell.

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.