Question

1 gram atom of an element means atoms present in 1 gram of the element. true or false

Answer 1

1 gram atom means 1 mole

So we have the relation:

No of moles=weight taken/atomic weight (let's call this equation 1)

Atomic weight of Na is 23 and no of moles=1

Substituting the above data in equation 1

Hence weight taken is 23g