The periodic table is the most important organising principles in chemistry. The

Question

The periodic table is the most important organising principles in chemistry. There is a regular progression in the periodic table that reflects a similar regularly in the structures and properties of the different elements. If you know the properties of any one element in a group, you can make a good goses at the properties of every other element in the same group and even the elements is neighbouring groups. Familiarizing yourself with the structure and arrangement of the periodic table early on will help you later on is chemistry. Classify the following elements as main group elements, transition metals, inner transition metals. Drag the appropriate elements to their respective bins.

Explanation / Answer

Transition metals : contain incompletely filled d orbital : Co, Ga, Ag

Main group element : incompletely filled s and p orbital : Ba, N

Inner transition metal : conatin incompletely filled f orbitals : Cm

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