Question

How is the 2s orbital different than the 1s orbital? (Choose all that apply)
The 1s orbital has a different value for the l quantum number.
The 1s has fewer nuclear nodes. The 2s orbital extends farther from the nucleus than the 1s.
The 1s orbital has a higher energy than the 2s orbital.
The 2s orbital is better at screening the outer orbitals than the 1s orbital.
The 2s has more spherical radial nodes.
The 2s orbital can have more values of the ml quantum number than the 1s can.

Answer 1

The 2s orbital different than the 1s orbital because the 2s orbital extends farther from the nucleus than the 1s.

As we move away from the nucleus, the values of the principal quantum number (n) continues to increase.

As the principal quantum number (n) increases, the orbital becomes farther away from the nucleus.

The higher energy orbital are always larger than the orbitals closer to the nucleus.

Hence, the 2s orbital different than the 1s orbital because the 2s orbital extends farther from the nucleus than the 1s.

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