Question

Classify each element as a representative element, transition metal, or inner-transition metal.

1) Representative element
2) Transition metal
3) Inner-transition metal

Answer 1

Elements on the periodic table can be categorized as representative elements, transition metals, or inner-transition metals based on their electron configurations and properties. Representative elements fill s and p orbitals, transition metals fill d orbitals, and inner-transition metals fill f orbitals in the lanthanide and actinide series.

Step-by-step explanation:

Classification of Elements

Elements can be classified on the periodic table by their properties and electronic configuration into representative elements, transition metals, and inner-transition metals. Representative elements include those in groups 1, 2, and 13-18 where the s and p orbitals are filling. Transition metals are those in groups 3-11 where the d orbitals are filling. The inner-transition metals consist of the lanthanide and actinide series, where the f orbitals are filling.

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These classifications help understand the chemical behaviors and properties of each element. Metals typically show properties like high electrical and thermal conductivity and the capacity to lose valence electrons.