SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the definition of an atom?
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The smallest part of any substance which can exist on its own
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Two or more atoms chemically joined together (can be the same or can be different)
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A simple substance in which all the atoms are identical
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Two or more different elements chemically joined together
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Explanation:
Detailed explanation-1: -An atom is a particle of matter that uniquely defines a chemical element. An atom consists of a central nucleus that is surrounded by one or more negatively charged electrons. The nucleus is positively charged and contains one or more relatively heavy particles known as protons and neutrons.
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