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A. A very small particle that makes up matter B. A large object in space C. A form of energy D. A type of wave 相关知识点: 试题来源: 解析 A。“Atom”在科学中意为“原子”,是构成物质的非常小的粒子;B 选项“a large object in space”指“太空中的大物体”;C 选项“a form of energ...
What Is an Atom in Chemistry? In the world of chemistry, an atom is matter, which makes up everything that is tangible (items you can touch) in the world. One important property of an atom is that it can't be broken down any further with any type of chemical means because it is i...
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What is the center of the atom composed of? What is the difference between atomic structure and crystal structure? What makes up most of the volume of an atom? How does an ion differ from an atom? What are the masses of the subatomic particles?
If an atom were about as big as a baseball stadium, the nucleus would be the size of a pea in the very center and the electrons would be somewhere on the outside edge.What makes an atom of gold different from an atom of iron is the number of protons, neutrons, and electrons inside...
However, one proton is about 1,835 times more massive than an electron. Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well. Adding a proton to an atom makes a new element, while adding a neutron makes an ...
You can't see atoms, but they make up everything around you: your chair, your desk, the birds outside, even you!Atomsare the foundation of matter, which is everything that makes up the universe around us. Each kind of atom makes up a pure substance called an element. You may have ...
百度试题 结果1 题目2.No matter what substance it may be, it(make)up of atom. 相关知识点: 试题来源: 解析 2.is made
Definition of an atom:Atoms are the smallest particles of an element that have the chemical properties of that element. Atoms are therefore extremely small (the hydrogen atom is the smallest) and are sometimes described as the "basic building blocks of matter". This description makes more ...