SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a small particle that is the building block of matter
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mass
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matter
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element
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atom
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Explanation:
Detailed explanation-1: -Scientists once thought the most fundamental building block of matter was a particle called the atom. Now we know that the atom is made of many smaller pieces, known as subatomic particles. Every atom contains a central core called the nucleus, made of particles called protons and neutrons.
Detailed explanation-2: -Atoms are composed of particles called protons, electrons and neutrons.
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