The atomic particle whose number in the atoms of an element always remains the same and which forms the real basis for the modern classification of elements is :

(a) electron (b) proton (c) neutron (d) meson

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Solution

(b) Proton.
Proton is an atomic particle whose number in the atoms of an element remains the same always, and forms the real basis for the modern classification of elements.

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Similar questions

Which of the following statement is correct about the atom of an element ?

(a) an atom can have only protons and neutrons but no electrons.

(b) an atom can have only electrons and neutrons but no protons

(d) an atom must always have a proton, neutron and electron

(a) an atom has equal number of electrons and protons

(b) an atom has equal number of electrons and neutrons

(d) an atom has equal number of electrons, protons and neutrons

How did atomic number prove a better basis for the classification of elements?

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