According to the rules of the periodic table of elements, first of all, metallicity increases from top to bottom, and non-metallicity weakens in order.
Elements of the oxygen family, oxygen is a strong nonmetallic element, and polonium in the oxygen family.
It is a typical metal. The metallicity of the elements in the table weakens from left to right and the non-metallicity increases. According to this rule, the metallicity of alkali metals is stronger than that of alkali metals. earth metals.
For example, sodium is more metallic than magnesium, potassium is more metallic than calcium, and magnesium is more metallic than aluminum. Transition metals are somewhat special. Although they are typical metals, they are relatively inert and possess. poor mobility.
For example, in gold and platinum, the above rules are determined by the atomic structure of the elementsmetal elements.