Can anyone tell me what the periodic table looks like?

In the longitudinal row, the left side of the periodic table is active metals, the right side is active non-metals, and the far right is rare gas elements. Middle"Transition elements"That is, the transition from reactive metal to active non-metal. f d s refers to the electron subshell, and the subshell is divided into four types, because the energy of the electrons on the same electron shell is still different, so the electrons on each layer are divided into subshells.

If you look closely, you will find that the transition element atom has a d f sublayer, which involves many laws and rules, which are introduced in college textbooks and high school textbooks under the new curriculum standard.

How to check: Many people have noticed that the last few elements of the periodic table always end with um, but this is actually just a temporary naming convention, called the IUPAC element system nomenclature. In this nomenclature, undiscovered elements and discovered but not yet officially named are given a temporary Western script name and a surrogate element symbol is prescribed, using a Latin numeric head to name the element by its atomic order.

This rule is easy to understand and easy to use, and it solves the problem of vicious competition for the preemptive naming of newly discovered elements, so that there is a basis for naming new elements.

For example, ununquadium is a combination of the four roots of un(1)-un(a)-quad(4)-ium (element), which means "element 114". Element 114 was named Fleroovium (FL) in honor of Soviet atomic physicist George Flolov (1913-1990); The ununhexium is a combination of the four roots of the word un (1) - un (1) - hex (6) - ium (element), which means "element 116". Element 116 is named Livermorium (LV), named after the city of Livermore, where the laboratory is located.

The transition elements are all metal. FD S of the electron layer: There are not so many requirements in high school.

For other formulas, techniques, etc., please refer to various tutorials.

There are too many to repeat.

The valence electrons of the transition elements involve not only the outermost shell but also the secondary outer shell in general.

FDS is a sublayer.

You can look for university chemistry books.

How to look at the periodic period is as follows:Part 1: Understanding the Structure.

1. The periodic table starts in the upper left corner and ends in the lower right corner.

2. The periodic table is divided into 18 columns, each of which is a family of elements.

3. One for each line of the periodic table"Period", with a total of 7 cycles.

4. In addition to the banquet, the elements can also be divided into metals, semi-metals and non-metals.

5. Also know that some elements are sometimes grouped together.

Part 2: Reading Symbols and Names.

1. First of all, you must read the symbols.

2. Then let's take a look at the common name.

Part 3: Reading atomic numbers.

1. You can also read the periodic table according to the atomic number in the middle or left of the box at the top of each element.

2. The atomic number is the number of protons in the nucleus.

3. One more or less proton will turn into a different element.

4. If you know the number of protons in the atom, you will know the number of electrons.

Part 4: Understanding Atomic Weights.

1. Find the amount of original silver.

2. You should know that the atomic weight of most elements has decimals.

3. The number of neutrons in a single atom can be known by using the atomic weight.

The periodic table lists 118 elements that have been discovered so far. It distinguishes these elements by symbols and numbers, and the periodic table itself is arranged according to the similarities of the elements. In this way, it is easy to understand the periodic table.

Periodic table.

It starts in the upper left corner and ends in the lower right corner. It is atomic number from left to right.

Ascendingly arranged. Atomic number is the number of protons in a single atom. Not every row or column is complete. Although there will be a break in the middle, it will not prevent you from continuing to read from left to right.

The periodic table is divided into a total of 18 columns, each of which is a family of elements. From top to bottom are elements of the same family. The numbers are usually at the top of the column; However, there are also those that appear below other families, such as metals. The numbers on the periodic table may vary.

Each row of the periodic table has one "period", for a total of 7 periods. From left to right are elements in the same cycle. The left side of the periodic table usually bears numbers from 1 to 7.

Each cycle is larger than the previous one. This has to do with the ever-increasing levels of atomic energy on the periodic table.

In addition, elements can also be divided into metals and semi-metals.

and non-metallic. They are represented by distinctly different colors. Metals are all represented by the same color. However, hydrogen is generally classified as a non-metal. Metals are lustrous, are usually solid at room temperature, and have heat transfer, conductivity, poor bending, plasticity, and ductility.

Also know that some elements are sometimes grouped together. They include alkali metals (1A), alkaline earth metals (2A), halogens (Leakage 7A), and rare gases.

8a) and carbon (4a). Numbers can be Roman numerals, Arabic numerals.

or standard numbers.

1. The atomic radius decreases from left to right and increases from top to bottom.

2. The periodic table has 7 periods and 16 families. Each horizontal row is called a cycle, and each vertical row is called a family (group VIII contains three columns). These 7 cycles can be divided into short cycles and long cycles).

3. In the same period, from left to right, the number of electrons outside the nucleus of the element is the same, the number of electrons in the outermost shell increases in turn, and the atomic radius decreases (except for group zero elements). The ability to lose electrons is gradually weakened, the ability to gain electrons is gradually increased, the metallicity is gradually weakened, and the non-metallic ability is gradually enhanced.

4. In the same family, from top to bottom, the number of electrons in the outermost shell is the same, the number of electrons outside the nucleus gradually increases, the atomic radius increases, the atomic number increases, the metallicity of the element increases, and the non-metallicity decreases.

The periodic period of the elements is Lavoisier, a scientist who decomposed the matter in nature into the basic elements, and carried out a series of tests on the properties of the elements, and finally unified and integrated by Mendeleev, and was recognized by the scientific community.

It is because in the course of his work that Mendeleev discovered the elements, assumed the existence of the elements, and finally unified and integrated them, which was recognized by the scientific community.

You know, there are many chemists who arrange the elements according to their properties and the structure of the atoms.

<> chemical tracking periodic table lists of chemical elements sorted by atomic order from smallest to largest. The list is generally rectangular in shape, with spaces in the periods of certain elements to group elements with similar properties, such as halogens and noble gases. This results in the formation of elemental partitions in the periodic table.

Since the periodic table is able to accurately ** the properties of various elements and their relationships.

As a result, it is widely used in chemistry and other scientific disciplines as a useful framework for analyzing chemical behavior. This results in the periodic table forming an elemental partition with seven primary families, seven secondary groups, and zero families.