(physics and chemistry) the smallest component of an element having the chemical properties of the element
百科解釋
The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons. The atomic nucleus contains a mix of positively charged protons and electrically neutral neutrons (except in the case of hydrogen-1, which is the only stable nuclide with no neutrons).
詳細百科解釋
其他語種釋義
atomとは意味:atom n. 〔物理 化學〕 原子; 微小分子. 【動詞+】 ◆He doesn't have an atom of common sense. 彼には常識のかけらもない ◆Was it Rutherford who first split the atom? 初めて原子を分裂させたのはラザフォードでしたか. 【+動詞】 ◆The two atoms join a benzene ring. そ...