Question

answer this simple question​

Answer 1

Answer:

to see which has the max number of atoms, you should calculate which has the most number of moles!

48g of helium: 48/4 =12 mol

3.011*10^21 molecules of ammonia is basically 0.5 mol, as 1 mol has 6.023*10^21

48 molecules methane:

48/6.023*10^21         which is kinda less (very small, i mean)

3 mol of oxygen is 3 mol of oxygen!

so, as u can see, 48g of helium has the largest number of moles

so 48g of helium (option 1) is ur answer

hope u understand:)