How to memorize the periodic table is simple. Is there a clever door?

The ingenious way of reciting the periodic table is as follows:

1. Self-compiled ancient poetry memory method. Li Pipeng, Tan Danyang pays milk. - Hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon.

That beautiful Guilin, revealing the marriage - sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chloride, argon, potassium and calcium. Anti-Taifan revolution, providing new problems - scandium, titanium, vanadium, leasing with chromium, manganese, iron, cobalt, nickel, copper, zinc. The fake is ashamed, and the attack macro can be wantonly engaged in - gallium, germanium, arsenic, selenium, bromine, kryptonium, rubidium, strontium, yttrium, zirconium.

2. Self-introduction of the image. I am hydrogen, I am the lightest, and the rocket depends on my satellite; I'm helium, I'm a scoundrel, I'm the best at gaining and losing electrons; I am lithium, which has a low density, and bubbles up when it encounters water and acid; I am beryllium, playing with the skin, although the metal is difficult to ionize; I am boron, black, silver and gray, and I am poor when it comes to electrons; I am carbon, slow to react, able to form both chains and rings; I am nitrogen, I am flame retardant, and ammonia can be synthesized by hydrogenation.

3. Combinatorial associative memory. Group memory. The first twenty elements are mnemonics in groups of five.

Hydrogen H, Helium He, Lithium Li, Beryllium BE, Boron B, Carbon C, Nitrogen N, Oxygen O, Fluorine F, Neon Neon, Sodium Na, Magnesium Mg, Aluminum Al, Silicon Si, Phosphorus P, Sulfur S, Chlorine Cl, Argon Argon, Potassium K, Calcium Ca.

Finally, you need to remind you that it is not the periodic table that you have to memorize, but the periodic law, that is, the structure, properties, and changes of various elements. If you really understand this, you will naturally memorize the entire periodic table. You can memorize the element symbols corresponding to each atomic number and their Chinese pronunciation and glyphs, or you can memorize the atomic number corresponding to each element.

Atomic radius

1. Except for the first period, the atomic radius of other periodic elements (except noble gas elements) decreases with the increase of atomic number.

2. The atomic radius of the elements of the same group increases from top to bottom with the increase of the number of electron layers. (Except for the sub-clan during the 5th and 6th week).

How to quickly memorize the periodic table is described as follows:

Cycle 1: Hydrogen, helium --- attack.

The second cycle: lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon--- carp skin with carbon, eggs to raise blessing milk.

Third cycle: sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon--- the beautiful Guilin with green teeth, the beautiful ghost, showing green teeth.

Fourth cycle: potassium, calcium, scandium, titanium, vanadium, chromium, manganese--- the counter-revolution of Kangtai.

Iron, cobalt, nickel, copper, zinc, gallium, germanium--- iron aunt pinched the newlyweds.

Arsenic, selenium, bromine, krypton--- anger, shock.

Fifth cycle: rubidium, strontium, yttrium, zirconium, niobium--- so tell you.

Molybdenum, rhodium, palladium, silver, cadmium, indium, tin, antimony--- old silver brother Yinxi embankment.

Tellurium, iodine, xenon 、-- place immortals.

Sixth cycle: cesium, barium, lanthanum, hafnium--- colored shell blue river.

Tantalum, tungsten, rhenium, osmium--- but see crows attract geese.

Iridium, platinum, gold, mercury, stone, lead--- a white towel for it to draw.

Bismuth, polonium, armium, radon--- will not love winter.

The seventh cycle: Copper, radium, actinium--- is very simple, it is --- lightning protection!

Summary of the periodic table of chemical elements.

1. Atomic radius.

1. Except for the first period, the atomic radius of the noble gas element of other periodic elements decreases with the increase of the atomic number;

2. The atomic radius of the elements of the same group increases from top to bottom with the increase of the number of electron layers.

2. The valence of the elements of the discussion hall.

1 In addition to the first period, from left to right in the same period, the highest positive valence of elements increases from alkali metal +1 to +7, the negative valence of non-metallic elements increases from carbon group -4 to -1 fluorine without positive valence, and oxygen without +6 valence, except for the non-positive valence;

2. The highest positive and negative values of elements of the same main family are the same.

3. The melting point of the element.

1. With the increase of atomic number of elements in the same period, the melting point of the elemental metal increases and the melting point of the non-metallic element decreases;

2. From top to bottom of the same group of elements, the melting point of the elemental metal decreases, and the melting point of the non-metallic elemental increases.

4. The metallicity of the elements.

1. The metallicity of elements in the same period decreases from left to right, and the non-metallicity increases;

2. The metallicity of elements in the same main group increases from top to bottom, and the non-metallicity decreases.

5. The most advanced oxide contains the acidity and alkalinity of the slow hidden hydrate.

The stronger the metallicity of the element, the stronger the alkalinity of the hydrate of its most ** oxide; The stronger the non-metallic nature of the element, the more acidic the hydrate of the most ** oxide.

6. Non-metallic gaseous hydrides.

The stronger the element non-metallic, the more stable the gaseous hydride. The stronger the non-metallic nature of the non-metallic elements in the same period, the more acidic the gaseous hydride aqueous solution is. The stronger the non-metallic nature of the non-metallic elements of the same main group, the weaker the acidity of the gaseous hydride aqueous solution.

7. Redox properties of elemental matter.

The stronger the metallicity of the general element, the stronger the reduction of its element, and the weaker the oxidation of oxygen ions of its oxides. The stronger the non-metallic nature of the element, the stronger the oxidation of its elemental substances, and the weaker the reducibility of its simple anions.

Here's how to quickly memorize the periodic table:

1. Remember a few of the most critical points: For junior high school, the most important thing is the H element, 0 element, and C element, basically remember these 3, and the others can be pushed slowly.

2. Distinguish the metal elements: all the metal elements are in the front row, so that we will be easier to remember when we remember further.

3. Recognize the period: In the periodic table, the position in the same horizontal row is called the period, so as to understand it from a comprehensive content.

4. The main family to learn: The same main family is the same in the outermost e-book, and the physical properties are very similar, so it is very easy to remember it with the main family.

5. One back for every 5: hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxyfluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chloride, argon, potassium, calcium. This Huaitan mountain like remembering the first 20 elements is very useful for our periodic table.

6. Each master comes to recite: especially the metal element, sodium metal, you can recite lithium, sodium, potassium, rubidium, cesium. The shapes are very similar and very memorable.

7. Find skills to memorize: For example, hydrogen chlorine, we can consider it as an infringement, so according to our own characteristics, which one of our backs is comfortable, we can recite it in the lead.

Homophonic method back periodic table

Cycle 1: Hydrogen, helium --- attack. Second Cycle:

Lithium, beryllium, boron, carbon, helium, oxyfluorone, neon-carp skin, carbon eggs, and milk for blessing. The third cycle: sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chloride, argon - that beauty Guilin has green teeth.

Fourth Cycle: Potassium Calcium Scandium Titanium Vanadium Chromium Manganese - Marry Kang Tai Counter-Revolution. Iron, cobalt, nickel, copper, zinc, gallium, germanium--- iron aunt pinched the newlyweds.

Arsenic, selenium, bromine, krypton--- anger, shock.

Week 5 letter training period: Rubidium, strontium, yttrium, zirconium, niobium - so to you. Molybdenum, technetium, ruthenium - unbelievable.

Rhodium, palladium, silver, cadmium, indium, tin, antimony-Daddy, Silver, Brother Innsiti. Tellurium, iodine, xenon 、-- place immortals. Sixth Cycle:

Caesium, barium, lanthanum, hafnium-(color), shell (shell), blue (color) river. Tantalum, tungsten, rhenium, osmium--- but see crows attract geese. Iridium platinum, mercury, lead-white towel for it to pull.

Bismuth, polonium, astatine, radon - will not love winter (day). The seventh cycle: francium, radium actinium - lightning protection!