Question

why Zeff for an electron in 1s orbital is greater than Zeff for an electron in a 2s orbital?​

Answer 1

Answer:

The Zeff for an electron in a 1s orbital is greater than that in 2s orbital because the electrons of the 1s-orbitals are nearer to the nucleus and are more tightly held by the nucleus than the electrons of the 2s orbital and as the distance of the orbital increases from the nucleus, the size of the orbital ...