Nuclei - Result Question 84
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86. Alpha-particles are
======= ####86. Alpha-particles are
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/nuclei/nuclei—result-question-84.md (a) protons
(b) positron
(c) neutrally charged (d)
(d) ionized helium atoms
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Answer:
Correct Answer: 86. (d)
Solution:
- (d) We know that alpha particles are the nucleus of ionized helium atoms which contain two protons and two neutrons. These are emitted by the nuclei of certain radioactive substances. Streams of alpha particles, called $\alpha$-rays, produce intense ionisation in gases through which they pass and are easily absorbed by matter.
