Question

How many neutrons are present in the α-particle?

Answer 1

ALPHA PARTICLE

When both the electrons present in helium are removed, the resultant entity is called alpha particle. So basically, alpha particle is a doubly ionized helium ion or to put it even simply, helium nucleus.

Helium has

• 2 protons
• 2 neutrons
• 2 electrons

When the two electrons are removed, we get an alpha particle which has

• 2 protons
• 2 neutrons
• 0 electrons

Thus an alpha particle has 2 neutrons.