Chemistry · Structure of the Atom
An element X has two isotopes: 6X12 and 6X14. Both are electrically neutral and chemically identical, but 6X14 is radioactive. Which statement best explains why 6X14 is radioactive?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because 6X14 has a smaller nucleus that cannot hold neutrons, leading to decay
- 2Because 6X14 has more electrons than protons, leading to electrostatic imbalance
- 3Because 6X14 has equal numbers of protons and neutrons, making it energetically unstable
- 4Because 6X14 has an excess ratio of neutrons to protons, leading to nuclear instability✓
Correct answer
Because 6X14 has an excess ratio of neutrons to protons, leading to nuclear instability
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