question, if thallium (atomic number 81) has an effective nuclear charge of 3+, how many core electrons does thallium have? is it 78?

Leasia asked Sep 13, 2022

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Leasia asked Sep 13, 2022

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24 votes

Answer:

Yes it is 78 because it has lost three electrons and it has a positive nuclear charge

Hacktisch answered Sep 20, 2022

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