How to recite the names and symbols of common elements in chemistry is easier.

Monovalent potassium, sodium, hydrogen, chlorine, silver, divalent oxygen, calcium, barium, magnesium, zinc, aluminum, silicon, pentavalent phosphorus, iron, iron, copper and mercury. Bivalent is the most common positive copper, potassium, sodium, silver, copper, magnesium, calcium, zinc, aluminum, silicon, sulfur, nitrogen, phosphorus, five, five, seven, chlorine, iron, two, four, two, and then keep the negative price in mind.

Periodic Table of Chemical Elements:

Memory method:

First, the pinyin method

The pinyin of some element Names is similar to the symbol of the element, such as Na, na's pinyin is nà; Ba element (Ba), the pronunciation of Ba consists of the pronunciation of Chinese pinyin "B" and the pronunciation of English letter "A"; The initials of fluorine (F) and fluorine are F, and the initials of tungsten (W) and tungsten are W; The Chinese pinyin for lithium element (Li) is "lǐ".

Second, the image method

The element symbols of some elements can be vividly remembered. For example, tungsten element (W) can be associated with tungsten filament in incandescent lamp, which looks like a "W" shape; Sulfur (S) can be combined with flowing water in winding rivers, and its shape is like an "S"; Oxygen element (O) can be associated with the circle of the sun; Potassium (K) can be related to the shape of open scissors when cutting nails.

Third, homophonic method

Take gold as an example. Imagine a scene where someone suddenly saw a glittering piece of gold on the ground and couldn't help exclaiming "Ouch". Isn't the pronunciation of "Ouch" exactly the pronunciation of the English letter "Au"?

Fourth, rhyming grammar

First, gold, silver, aluminum, argon "A", barium and bromine, calcium, copper, carbon and chlorine "C" and "M" lead, manganese and magnesium.

Secondly: hydrogen (h) Helium (he) lithium (Li) Beryllium (be) boron (b), carbon (c) nitrogen (n) oxygen (o) fluorine (f) neon (ne), sodium (Na) magneSium (Mg) Aluminum (al) silicon (si) phosphorus (p).

Zinc (Zn), iron (Fe), copper (Cu), mercury (Hg), silver (Ag), platinum (Pt), gold (Au), barium (Ba), iodine (I), manganese (Mn) and bromine (Br).

Five, decentralized memory method

It is too difficult to remember all the symbols of common elements given in textbooks if they are concentrated in one class. Combined with the infiltration of the previous content, if the memory is dispersed by the above methods according to their respective characteristics, the difficulty of memory can be greatly reduced.