Question

if elements are microscopic then how can we know their molecular formula​

Answer 1

Answer:

We can take them as a mole of element

1 mole 6.023*10^23 atoms then we can find its molecular Formula We can identify it is one mole measuring by getting the molecular formula of the element Bro there are specific machines to identify it's mass just like how we can find the mass of electron and proton By using E/m ratio

I don't know if this is helpful I am sorry that couldn't explain Sorry...