Neutrons and Isotopes

The video explains the fundamental structure of atoms, highlighting the roles of protons, electrons, and neutrons. It discusses how isotopes form and affect atomic weight, emphasizing the importance of neutron balance for stability. The video also covers radioactive decay, detailing alpha, beta, and gamma decay processes, and their implications for energy release and radioactivity.

What happens to an atom's charge if it gains an extra electron?

• Its charge remains unchanged.

• It becomes negatively charged.

• It becomes positively charged.

• It becomes neutral.

What is an isotope?

• An atom with extra electrons.

• An atom with extra protons.

• An atom with a different number of neutrons.

• An atom with no charge.

Why do atoms with more neutrons than protons become unstable?

• They have too many electrons.

• They have too much energy.

• They have an imbalance in charge.

• They release energy to become stable.

Which type of radioactive decay occurs when an atom has too many protons?

• Alpha decay

• Gamma decay

• Beta decay

• Delta decay

What type of particles are emitted during gamma decay?

• No particles, only energy

• Positively charged particles

• Neutral particles

• Negatively charged particles