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2025, Vol. 46(19): 116-120    DOI: 10.13884/j.1003-3807hxjy.2025010128
Regularity of Periodic Gradation in Properties of Alkali and Alkaline Earth Metal Elements
GU Chun-Hui1*, ZHUO Jun-Qiao2
1. The Affiliated High School of Peking University, Beijing 100190, China;
2. Chongqing Education Science Research Institute, Chongqing 400015, China
Received 2025-01-10  Revised null
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