What is the electron configuration for thallium (iii) ion and charge?

The electronic configuration of thallium (iii) ion is [Xe] 4f¹⁴ 5d¹⁰ and its charge is +3

Thallium atom has 81 electrons and its electronic configuration is [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹.

Thallium (iii) ion has lost 3 electrons from its outermost energy levels (6s and 6p). It lost 2 electrons from 6s and 1 electron from 6p. Therefore, the electronic configuration of thallium (iii) ion is  [Xe] 4f¹⁴ 5d¹⁰

The charge of thallium (iii) ion is +3

Hence, the electronic configuration of thallium (iii) ion is [Xe] 4f¹⁴ 5d¹⁰ and its charge is +3

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chemistry sucks a**

explanation:

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.