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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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| (b) `n = 3, l = 2, m_l = -1, m_s = - 1/2` | |
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(ii) The principal quantum number determines the orientation and energy of the orbital.
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| (iii) \[\ce{Ni^{2+}}\] | (c) [Ar]3d64s0 |
| (iv) \[\ce{Cu}\] | (d) [Ar] 3d54s1 |
| (e) [Ar]3d64s2 |
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