To determine the amount of oxygen atoms in the compound given, we need convert it in terms of moles and relate the number of atoms O per mole of the compound. From there, we use the avogadro's number to convert it into atoms.
29.34 g Na2SO4 ( 1 mol / 142.04 g ) ( 4 mol O / 1 mol Na2SO4 ) (6.022x10^23 atoms O / 1 mol ) ) = 4.98x10^23 atoms O
Sissy imposter among us haha
Okay so Sulphur is larger than sodium bcz it has more elements than sodium. And its radius is larger than that of sodium too
If you are talking about the Gold-foil experiment:
During Rutherford's time, the JJ Thomson (plum pudding) model was the accepted version of an atom. However when Rutherford shot positive alpha particle rays at a piece of gold foil. Some of the particles bounced back, meaning that Atoms had a positive center. Most of the particles went through, which means that Atoms are mostly empty space.
All wavelengths/colours that are visible make up white light. From violet (between 380 nm and 450 nm) to red (between 400 nm and 700 nm).
