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Question
Draw shapes of 2s orbitals.
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Solution
Shapes of 1s and 2s orbitals Boundary surface diagrams
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| Quantum number | Information provided |
| (i) Principal quantum number | (a) orientation of the orbital |
| (ii) Azimuthal quantum number | (b) energy and size of orbital |
| (iii) Magnetic quantum number | (c) spin of electron |
| (iv) Spin quantum number | (d) shape of the orbital |
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| (i) \[\ce{Cr}\] | (a) [Ar]3d84s0 |
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| (iii) \[\ce{Ni^{2+}}\] | (c) [Ar]3d64s0 |
| (iv) \[\ce{Cu}\] | (d) [Ar] 3d54s1 |
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