GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -An alpha-particle is identical to the nucleus of a normal (atomic mass four) helium atom i.e. a doubly ionised helium atom. Alpha particles (also termed alpha radiation or alpha rays) was the first nuclear radiation to be discovered, beta particles and gamma rays were identified soon after.
Detailed explanation-2: -When the two electrons are removed, there will be no electron in the helium atom. It will be left only with the nuclear particles or we can say there is a helium nucleus. A special name has been given to this helium nucleus and it is known as an alpha particle.
Detailed explanation-3: -The nucleus (the center) of a helium-4 atom is also known as the alpha particle.
Detailed explanation-4: -Its nucleus is identical to an alpha particle, and consists of two protons and two neutrons.