If
A = 1s², 2s², 2p¹
B = 1s², 2s², 2p⁶, 3s², 3p¹
C = 1s², 2s², 2p⁶, 3s², 3p³
D = 1s², 2s², 2p⁶, 3s², 3p⁵
E = 1s², 2s², 2p⁶, 3s², 3p⁶ 4s²
F = 1s², 2s², 2p⁶, 3s² 4s², 3d¹
Which is the most metallic?

Which has the highest negative value for electron gain enthalpy?

Which one belongs to the d-block?

Which is a halogen?

Which two elements are in the same group?

Which element belongs to the 13^th group?

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Solution

1. F is most metallic. (one electron in d-orbital, so is a transition metal)
2. D (as only one electron is required)
3. F
4. D
5. A and B (last electron in group 13)
6. A and B

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Similar questions

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{1}

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{5}

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{1}

{(I E)}_{1}

{(I E)}_{4}

The electronic configuration of Ti is 1 $s^{2}$ 2 $s^{2}$ 2 $p^{6}$ 3 $s^{2}$ 3 $p^{6}$ 3 $d^{2}$ 4 $s^{2}$ and it represents

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{2}

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{1}

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {3 d}^{3} {4 s}^{2}

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