Unit 14 · Atomic Structure and Chemical Bond

Radioactive Elements and Radioactive Emission Presentation

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Science and Technology, Class 9

Radioactive Elements and Radioactive Emission

Nuclear stability · Fission and fusion · Atomic energy

Nuclear Stability

⚛️

Nucleus = protons + neutrons

⚖️

Light atoms: n/p = 1

📈

Heavy atoms: n/p > 1

⚠️

Large atomic number = unstable

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Presenter notes: Today we look inside the centre of the atom, the nucleus, and see what happens there.