Class 12 NEET Physics Atoms and Nuclei Questions Part 2

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Question : 28 of 79

Marks: +1, -0

α-particle consists of :

[NEET 2019]

2 electrons, 2 protons and 2 neutrons
2 electrons and 4 protons only
2 protons only
2 protons and 2 neutrons only

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