Atoms And Nuclei Question 261
Which of the following is the most unstable [AFMC 2005]
Options:
A) Electrons are subatomic particles with a negative electric charge. They are fundamental components of atoms, orbiting the nucleus in energy levels or orbitals. Electrons play a crucial role in chemical bonding and electrical conductivity.
B) Protons are subatomic particles found in the nucleus of an atom, carrying a positive electric charge. They have a mass approximately equal to that of a neutron, and their number determines the atomic number of an element.
C) Neutrons are subatomic particles found in the nucleus of an atom. They have no electric charge and a mass slightly greater than that of a proton.
D) $ \alpha $ -particle
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Answer:
Correct Answer: C
Solution:
Neutrons are unstable and have a mean lifetime of 32 sec, decaying by emitting an electron and antineutrino to become a proton.
BETA
