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Which of the following elements is an example of a tetratomic molecule?
  • a)
    Helium (He)
  • b)
    Phosphorus (P4)
  • c)
    Oxygen (O2)
  • d)
    Nitrogen (N2)
Correct answer is option 'B'. Can you explain this answer?

Ameya Khanna answered
Understanding Tetratomic Molecules
Tetratomic molecules are composed of four atoms bonded together. The question asks for an example of such a molecule from the given options.
Options Analysis
- Helium (He)
- This is a monatomic molecule consisting of a single atom.
- Therefore, it does not qualify as a tetratomic molecule.
- Phosphorus (P4)
- Phosphorus exists as a tetraatomic molecule in its most common form, which consists of four phosphorus atoms bonded together.
- This makes it the correct answer as it meets the criteria of a tetratomic molecule.
- Oxygen (O2)
- Oxygen is a diatomic molecule, consisting of two oxygen atoms.
- It does not fit the definition of a tetratomic molecule.
- Nitrogen (N2)
- Similar to oxygen, nitrogen is also a diatomic molecule made up of two nitrogen atoms.
- Hence, it is not tetratomic.
Conclusion
Among the options provided, phosphorus (P4) is the only molecule that consists of four atoms, making it a tetratomic molecule. The other options either consist of one or two atoms, disqualifying them from being classified as tetratomic. Thus, the correct answer is indeed option 'B'.

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