Question

how many atoms are in 52u of Helium

Answer 1

Answer:

molecular mass of helium=2

Explanation:

moles of helium=26

atoms of helium=26*6.023*10^23

Answer 2

Answer:

Explanation:

It's. 52 u of Helium .

We want no of atoms in 52 u of Helium.

It's not gram (g) it's unified mass(u).

So ,

1 mole of He (in u) is 4u.

No of atoms is:52/4

i.e. 13 atoms