[일반 화학 실험 영어 레포트] Atomic and Molecular Structure

1. Introduction

Atomic and molecular structure represents one of the foundational concepts in chemistry, providing insights into the composition, arrangement, and interactions of matter. At the most fundamental level, atoms serve as the basic building blocks of all substances. An atom consists of a nucleus containing protons and neutrons, surrounded by electrons that occupy distinct energy levels or orbitals. The protons, which are positively charged, and neutrons, which have no charge, collectively contribute to the atomic mass and are housed within the dense nucleus at the center of the atom. Electrons, on the other hand, are negatively charged and are found in regions of space around the nucleus, where they exhibit behaviors that are dictated by the principles of quantum mechanics. The arrangement of these subatomic particles establishes the unique identity of each element represented on the periodic table. The number of protons in the nucleus, also known as the atomic number,
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