SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ are pure substances made of one type of atom.
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Compounds
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Mixtures
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Elements
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Photosynthesis
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Explanation:
Detailed explanation-1: -An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.
Detailed explanation-2: -A pure substance that is made up of only one type of atom is called an element. There are 118 known elements that have been observed in nature or created in a laboratory. The smallest atoms belong to the element hydrogen and consist of only a single proton and a single electron.
Detailed explanation-3: -This list contains the 118 elements of chemistry.
Detailed explanation-4: -Therefore, a pure substance which contains two different kinds of atoms is called compound.
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