Question

what is the difference between 2H and H2

Answer 1

2H is two hydrogen atoms that are freely moving while H2 is Hydrogen molecule that has two atoms sharing their electrons for completing their duplet.

Answer 2

H2 and 2H are completely different from each other as H2 is molecular hydrogen and on other side 2H means there will be two separate moles of elemental hydrogen.

There will be no chemicals bonds and here ‘H’ is the “Atomic Hydrogen” and H2 is known as the diatomic and it is stable with a neutral charge and it is also not a free radical.