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Chemistry

Answered

Which of the following notations represents an alpha particle?
A. 2 He
C.B+
В. В
D. Y

Answer :

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Answer:

A. 2 He

Explanation:

The notation of an alpha particle is depicted as:

₂He

An alpha particles is a nucleus of 2 protons and 2 neutrons. So it is actually a Helium cation.

Alpha particles are monoenergetic and they mostly have discrete energy.

So, the mass number of the particle is 4 and atomic number is 2

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