1. Position in the Periodic Table and Bonding Rules (Core Exam Point: Classification Position → Property Correlation) Question 1 (2023 National A Paper) The following statements about non-metal elements and their compounds are correct ( ) A. Si is a metalloid, and its oxide SiO₂ is a basic oxide B. The highest valence oxides of … Read more
1. Position and Classification in the Periodic Table (Core Concept: Position → Structure → Properties) Question 1 (2023 National B Exam) Which of the following statements about metal elements is correct? ( ) A. All metal elements are located in the s-block and d-block of the periodic table B. Elements with fewer than 4 electrons … Read more
First Author:Dr. Ma Fulong, Dr. Jia Xi, Dr. Deng Ziwei Corresponding Authors:Professor Tang Banzhong; Professor Zhao Zheng Affiliation:The Chinese University of Hong Kong (Shenzhen), School of Science and Engineering Full Text Link:https://doi.org/10.1021/acsnano.3c11078 Keywords NIR-II; Aggregation-Induced Emission; Molecular Motion; Radiative and Non-Radiative Transitions; Surgical Navigation Research Background As an emerging diagnostic technology, fluorescence imaging offers advantages … Read more