| 释义 |
adj.+n. metal atom,radioactive atom v.+n. ionize atom,split atom n. particle,bit,iota,jot,molecule 1. | 原子the smallest part of a chemical element that can take part in a chemical reaction |
| the splitting of the atom 原子的分裂 | | Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water. 两个氢原子和一个氧原子结合组成一个水分子。 |
n. | 1. the smallest portion into which an element can be divided and still retain its properties, made up of a dense, positively charged nucleus surrounded by a system of electrons. 2. a very small part or amount 3. the basic particle of matter, indestructible and indivisible, first proposed by ancient Greek philosophers as the fundamental component of the universe 4. the smallest unit of any substance. It consists of a nucleus made of protons and neutrons with electrons travelling around it 1. the smallest portion into which an element can be divided and still retain its properties, made up of a dense, positively charged nucleus surrounded by a system of electrons. 2. a very small part or amount 3. the basic particle of matter, indestructible and indivisible, first proposed by ancient Greek philosophers as the fundamental component of the universe 4. the smallest unit of any substance. It consists of a nucleus made of protons and neutrons with electrons travelling around it |
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