Respuesta :

A) a beta particle. 

A nucleus is not an electron. An alpha particle is equivalent to a helium. A positron is an electron but with opposite charge. 

The complete statement is as follows "  beta particle is a high energy electron."

What is the energy electron?

The energy of an electron is said to possess the same magnitude of energy as the energy of light.

Generally, the Beta particles are simply high energy particles that are radiated from the nucleus by some elements.

In conclusion

A beta particle is the high energy electron.

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