Question #7
2006
📝 Question
Consider the following pairs:
1. Proton—eO
2. βParticle—lH'
3. Neutrons—No mass but definite charge
4. Electrons—No charge and no mass
Which of these are not correctly matched?
❓ Options
A
1 and 2
B
1 and 3
C
2, 3 and 4
D
1, 2, 3 and 4
✓ Correct Answer
💡 Explanation
- Proton has a positive charge and mass, not eO (electron charge and mass).
- βParticle (beta particle) is an electron or positron, not lH' (a hydrogen isotope).
- Neutrons have mass but no charge, contrary to the statement.
- Electrons have mass and a negative charge, not no charge and no mass.
📌 Key Points:
Also read alpha, Beta and Gamma Particle.