Identify the incorrect statement from the following :

1. A. The largest and the smallest species among Mg, Mg 2+ , Al and Al 3+ are Al and Mg 2+ respectively.
2. B. The IUPAC name of the element with atomic number 107 is Unnilseptium.
3. C. The similarity in behaviour of Li with Mg is referred to as ‘diagonal relationship’
4. D. The oxidation state and covalency of Al in [AlCl(H2O)5] 2+ are 3 and 6 respectively.

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