Activity 16: LONG METHOD AND SHORT METHOD
Find the electronic configuration of the following :
Long method Short method
1. Cobalt - ______________ ______________
2. Radium -_____________ _____________
3. Iron - ________________ ______________
Find the electronic configuration of the following :
Long method Short method
1. Cobalt - ______________ ______________
2. Radium -_____________ _____________
3. Iron - ________________ ______________
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Verified answer
Answer:
Long method
Short method
Explanation:
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Verified answer
Long Method.
Cobalt — [Ar] 3d⁷ 4s²
Radiuo — 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 7s²
Iron — [Ar] 4s2 3d6
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Short Method.
Cobalt — 1s²² s²² p⁶³ s²³ p⁶⁴ s²³ d⁷
Radium — [Rn] 7s²
Iron — [Ar] 3d6 4s2
Explanation:
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