1 gm -atom of nitrongen may represents

1gm-atom of nitrogen may represent:

1 gram atom of nitrogen represents ____________.

1 g-atom of nitrogen represents

Which of the following configuration may represent the ground state of nitrogen atom ?

Which of the following configuration may represent the ground state of nitrogen atom?

The atomic masses of two elements A and B are 20 and 40 respectively. If x gm of A contains Y atoms, how many atoms are present in 2x gm of B