Recite the formula of the periodic table of chemical elements 1 1. Break the whole into parts and disperse memory.
Starting with the common element symbols, we adopt the strategy of breaking the whole into parts, classify them and carry out conscious memory from different angles.
For example, remember the element symbols learned in each class first, and gradually master the element symbols similar to pinyin in the later study;
Sodium (Na), barium (Ba), helium (He), argon (Ar), etc.
Second, confusing symbols and contrasting memory
For element symbols consisting of two letters, and the first capital letter (or the second lowercase letter) is the same, it is advisable to list them separately and strengthen the memory by comparison.
For example:
① Copper (Cu), calcium (Ca) and chlorine (Cl);
② Aluminum (Al), silver (Ag), argon (Ar) and gold (Au);
(3) He, Ne and Fe;
④ Magnesium (Mg), mercury (Hg) and silver (ag).
Third, make up poems and recite rhymes.
There are 27 kinds of elements required to be memorized and mastered in the first volume of junior high school textbooks, including nonmetallic element 13 and metallic element 14. If these 27 elements and bromine are made into rhyming poems, memory will become interesting.
C ho n si sp
Potassium, calcium, sodium, magnesium, aluminum, iron and zinc;
Fuwan iodine helium neon argon;
Ba, Mg, Cu, Hg, Ag, Pt.
Fourth, give meaning and homophonic memory.
That is, the chemical content that needs to be memorized is combined with the homonym in daily life, so that meaningless memory becomes meaningful memory.
For example, the element 15 in the memory metal active sequence table:
Potassium, calcium, sodium, magnesium, aluminum, zinc, iron, tin, lead (hydrogen), copper, mercury, silver, platinum and gold.
K, Ca, Na, Mg, Al, Zn, Fe, Sn, Pb, Cu, Hg, Ag and Pt.
The homonym is: "Add that beautiful woman, zinc, iron, tin, lead, hydrogen, a total of 100 Jin."
For example, remember the content order of the first four elements in the earth's crust:
O Si Al Fe, which can be homophonic as "the paste of raising a daughter", means to attach a dowry when raising a daughter.
Five, prepare riddles, guessing memory
Weave the elements into riddles. For example:
① metal crown (k metal)
(2) gold was stolen (iron and iron metal)
③ tracheitis (nitrogen and nonmetal)
(4) Begging with a golden bowl (calcium and calcium metal)
⑤ USD (magnesium metal)
When the river encounters drought, the bottom comes out (sulfur S nonmetal).
⑦ Earthwork (Si nonmetal)
Work hard to earn more money (zinc, zinc, nonmetal)
Pet-name ruby stinks when you leave water (bromine br nonmetal)
Attending two-in-one gold (aluminum-aluminum metal)
Sixth, the most elements, induction
Summarize from the top of the element and summarize the memory. For example:
① Oxygen (O), the most abundant element in the earth's crust.
② Aluminum (Al), the most abundant metal element in the earth's crust.
③ Nitrogen (N), the most abundant element in the air.
(4) Mercury (Hg), the element that constitutes the metal with the lowest melting point.
⑤ Silicon (Si) with the highest purity has been prepared.
⑥ Carbon (C) is the element that forms the most kinds of compounds.
⑦ Calcium (Ca) is the most abundant metal element in human body.
Recite Formula 2 of the Periodic Table of Chemical Elements. The first cycle:
Hydrogen and helium-invasion
The second cycle:
Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon —— Carp skin holds carbon eggs to raise milk.
The third cycle:
Sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon-that beautiful woman in Guilin has green teeth.
The fourth cycle:
Potassium, calcium, scandium, titanium, vanadium, chromium and manganese
Iron, cobalt, nickel, copper, zinc, gallium and germanium-newlyweds with iron-are miserable.
Arsenic, Selenium, Bromine and Krypton-Anger Shock
The fifth cycle:
Rubidium strontium yttrium zirconium niobium-so I'm telling you
Molybdenum, technetium and ruthenium-amazing.
Rhodium, palladium, silver, cadmium, indium, tin and antimony-dad, silver, brother, India and Sidi
Xenon-iodine telluride positioning wizard
The sixth cycle:
Cesium, barium, lanthanum and hafnium-(color) color shell (blue river shell)
Tantalum, Tungsten, Rhenium, Osmium —— But (see) Wu (crow) (lead) Lai goose
Iridium, platinum, gold, mercury and lead-a white towel.
Bismuth, polonium and radon-Never love winter (daytime)
The seventh cycle:
Lightning protection!