If Aufbau rule is not followed, \( \mathrm{K}-19 \) will be placed in(1) \( \mathrm{s} \) block(...

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If Aufbau rule is not followed, \( \mathrm{K}-19 \) will be placed in(1) \( \mathrm{s} \) block(3) \( \mathrm{d} \)(4) \( \mathrm{f} \)
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