From the ψ2 vs r graph (i.e probability of finding an electron vs distance from nucleus graph), there are no nodes for 1s orbital while there is a node in the 2s orbital graph.But they have similar structures right? Then why is there a difference in finding the probability of finding an electron? Also, the p-orbitals 2p,3p,etc have similar structures. Then why is there a difference in number of nodes? Can someone explain this by providing images of 1s,2s orbitals?