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 heard of oxygen, lead, and gold. Well, these are all examples of elements. Can you believe that a pure gold ...
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It has no known components or substructure, and therefore is believed to be an elementary particle.这种题最好有图解说比较好2.What is an element, mixture, molecule, and compound?什么是元素,混合物,分子和化合物A chemical element is a pure chemical substance consisting of one type of atom.In ...
Is a diamond classified as a pure substance, a pure element, a homogeneous mixture, or a heterogeneous mixture? Mixture: A mixture is stated as a type of physical combination that comprises substances whose identities are retained. These substances can be ...
AnElectric Dipoleis formed from a substance that possesses two equal electric charges of opposite sign separated by a small distance. The best example of an electric dipole is an atom with one electron and one proton (Hydrogen). The proton acts as the source of positive charge, while the el...
Copper falls under the category of an element as copper cannot be broken down any further. All the atoms in a copper element have 29 protons in the nuclei. Copper is the building block for many copper compounds. It is not a compound as there is only one type of atom in Cu. ...
Is glucose a pure substance? Pure Substances: Matter can be divided into two different categories: pure substances and mixtures. If the matter has just one type of element or one type of molecule, it is a pure substance. If matter has more than one atom and/or molecule, then it is a ...
Chemistry is the study of matter and how matter interacts with each other Matter is made up of small particles called atoms An atom is the smallest part of matter/an element that can be recognized as that element Back to this later… ...
Brass is not a pure substance. It is an alloy, which is a mixture of two or more metals. Specifically, brass is usually made up of copper and zinc... Learn more about this topic: Alloy | Definition, Types & Examples from Chapter 1/ Lesson 11 90K...