Concept explainers
To identify: the formula for the compound if thallium has an oxidation number of 1+.
Explanation of Solution
Introduction:
Thallium carbonate contains thallium and carbonate ions. Thallium belongs to group 13 and has 3 electrons in its valence shell. The atomic number of thallium is 81.
Its electronic configuration is
Thallium possesses 2 electrons in 6s and 1 electron in 6p subshells.
As we move down the group, the tendency of inner electrons to take part in the bond formation decreases. It is called the inert pair effect.
Therefore, only an electron present in 6p subshell can take part in the bond formation and form the compound.
Thus, thallium shows the oxidation number of +1. Carbonate ion is having overall -2 charges on it. Therefore, the formula of the compound is
Ti | ||
+1 | -2 | charges |
On cross multiplying the charges, the formula is found to be
Conclusion:
Hence, the formula of thallium carbonate is
Chapter 18 Solutions
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
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