Special Topic on Periodic Table of Elements

I believe every student who has been to junior high school has memorized the periodic table of chemical elements, and there is also a jingle for hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, calcium, etc. The periodic table of chemical elements is a list of chemical elements ordered from smallest to largest atomic number. The list is generally rectangular, with spaces left in the periods of some elements so that elements with similar properties can be grouped into the same group, such as halogens, alkali metal elements, noble gases (also known as noble gases or noble gases), etc. Because the periodic table accurately predicts the properties of various elements and their relationships, it is widely used in chemistry and other sciences and is a useful framework for analyzing chemical behavior.
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Special Topic on Periodic Table of Elements

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I believe every student who has been to junior high school has memorized the periodic table of chemical elements, and there is also a jingle for hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, calcium, etc. The periodic table of chemical elements is a list of chemical elements ordered from smallest to largest atomic number. The list is generally rectangular, with spaces left in the periods of some elements so that elements with similar properties can be grouped into the same group, such as halogens, alkali metal elements, noble gases (also known as noble gases or noble gases), etc. Because the periodic table accurately predicts the properties of various elements and their relationships, it is widely used in chemistry and other sciences and is a useful framework for analyzing chemical behavior.