Question

Post transition elements belong to which group number in the periodic table?
A. 1
B. 3 to 12
C. 2
D. 13 to 16

Answer 1

Periodic categorization of elements is a way of grouping elements based on their properties, such as keeping elements that are similar in one group and the rest of the elements in the other. Some vacant spots have been left in the periodic table to accommodate elements that will be found in the future without disrupting the elements' trending periodicity.

Complete step-by-step solution:
The periodic table's post-transition metals are a group of elements. To the right of the transition metals and to the left of the metalloids, they are found. "Other" metals and "poor" metals are additional terms used to describe them. What are the elements that make up post-transition metals? Scientists can't seem to agree on a name for this class of metals (poor, other, post-transition) or which elements should be included. The elements of the post-transition metals are often aluminium, gallium, indium, tin, thallium, lead, and bismuth, which are found in groups 13, 14, and 15. Polonium is also referred to as a post-transition metal. For additional information on each aspect, follow the links or look below. Many features of post-transition metals are similar, notably the fact that they are solid metal under normal circumstances. They are malleable, ductile, and excellent heat and electrical conductors, just like other metals. They have a rather dense population. They are often softer and have lower melting and boiling temperatures than transition metals. Aluminum is the most plentiful post-transition metal on Earth, as well as the most plentiful metal in the Earth's crust. In order of abundance in the Earth's crust, below is a list of post-transition metals: Aluminum, Gallium, Lead, Tin, Thallium, Indium and ​Bismuth
Hence option D is correct.

Note: Zinc, cadmium, and mercury are sometimes classified as post-transition metals instead of transition metals. After oxygen and silicon, aluminium is the third most prevalent element in the Earth's crust. Germanium and antimony are sometimes classified as post-transition metals rather than metalloids. Gallium's melting point is only a few degrees above ambient temperature, and if held in the hand, it will melt.