SSC MCQ Question Ans. Structure of Matter
SSC MCQ Question Ans. Structure of Matter. SSC MCQ Question Ans. The structure of Matter. Every matter of the universe is made of small particles. They are so small that they are not even visible with the high-efficiency microscope. The name of smallest particle of the fundamental element is called atom and the smallest particle of compounds are called molecule. Every atom has its own characteristics. A principal characteristic is its atomic number. Atom and molecule have actual and relative mass. Proton, electron, and neutron are the principal particles of the atom.
Nucleus, at the center of the atom, is composed of proton and neutron which bears the total mass of the atom. Electrons of the same number of proton move around the nucleus on various axis. The same elements again have atoms with different atomic mass which are called isotopes. They have multifarious uses in various fields of human life.
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