second ionisation state of He?
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✌️✌️Sat sri akal✌️✌️
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1⃣He(g)→He+(g)+e− ➡️ ΔHIE1.
2⃣He+(g)→He2+(g)+e− ,➡️ΔHIE2.
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☺️As He+ is hydrogen-like, i.e. it has one electron, and is thus isoelectronic with H ... we can invoke Koopman's approximation theorem, which in simplified terms, state☺️
✌️✌️✌️✌️✌️DHANBAAD✌️✌️✌️✌️✌️
..............................................................................
1⃣He(g)→He+(g)+e− ➡️ ΔHIE1.
2⃣He+(g)→He2+(g)+e− ,➡️ΔHIE2.
............................................................................
☺️As He+ is hydrogen-like, i.e. it has one electron, and is thus isoelectronic with H ... we can invoke Koopman's approximation theorem, which in simplified terms, state☺️
✌️✌️✌️✌️✌️DHANBAAD✌️✌️✌️✌️✌️
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