How do an element's physical and chemical proper relate to it's position on the periodic table?

Question

Wyatt Adkins · Accepted Answer

The elements in periodic table is never positioned according to only on the basis of physical and chemical properties.

It is incorrect to state that the elements are arranged in the periodic table based on their properties, as many elements exhibit relationships with other elements. Instead, the elements are arranged in the table according to the number of electrons or protons they possess. Consider hydrogen, which exhibits properties similar to both alkali metals and halogen. Magnesium and lithium have a diagonal relationship, meaning that when two elements are heated, their carbonate, nitrite, and hydroxide forms separate and yield the same product. The lanthanum contraction is responsible for the nearly equal sizes of the elements from periods 6 and 7. Thus, your presumption is incorrect.

Cooper Anderson · Answer

undefined Elements within a group tend to have similar chemical properties because they have the same number of valence electrons, which are responsible for chemical reactions; elements within a period tend to have similar physical properties because they have similar atomic structures and atomic sizes; trends such as atomic radius, ionization energy, electronegativity, and metallic character can be observed across periods and groups on the periodic table. The periodic law states that the properties of elements are periodic functions of their atomic numbers.