What is the periodic table of metal elements?

The metAl sequence table is: k, Ca, Na, Mg, Mg, al, al, Zn, Zn, Fe, Sn, pb, h, Cu, Hg, Ag, Pt, pt, Au, which are the most commonly used metals and need to be memorized. The metal before H is a relatively active metal, which can react with hydrochloric acid and sulfuric acid, while the metal after H is inactive.

The periodic table of chemical elements is a list of chemical elements in descending order of atomic number. The list is generally rectangular, and some elements have spaces in the period, so that elements with similar characteristics belong to the same group, such as alkali metal elements, alkaline earth metals, halogen elements, rare gases and so on. Metal elements are located in the first position of each period in the periodic table, that is, the first column.

Extended data:

The metal activity sequence table refers to the order from strong to weak between metals under normal circumstances. The periodic table of elements is called the periodic table of elements. According to the increasing order of nuclear charges of elements, the same number of electrons are placed in a horizontal row (period) and the same number of valence electrons are placed in a vertical row (family).

Connection: in the periodic table of elements, with the increase of nuclear power charge in the same period, the metallicity gradually weakens; In the same family, with the increase of nuclear power charge, the metallicity gradually increases.

Baidu encyclopedia-metal activity sequence table