NTSE Stage 2 SAT 2015 Question Paper

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Question : 19 of 100
 
Marks: +1, -0
How many sub-atomic particles are present in an α -particle used in Rutherford’s scattering experiment?
No. of
Protons
No. of
Neutrons
No. of
Electrons
(a) 4 00
(b) 2 0 2
(c) 2 2 0
(d) 2 2 1
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