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Grade 11Modern Physics

Alpha-particles are

(a) Protons

(b) Positron

(c) Neutrally charged

(d) Ionized helium atoms

Profile image of Simran Bhatia
12 Years agoGrade 11
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1 Answer

Profile image of Amit Saxena
12 Years ago

(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 a-rays, produce intense ionisation in gases through which they pass and are easily absorbed by matter.