Select the incorrect statement from the given choices?
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Answer: D. Positron is heavier than a proton
Explanation
A positron is an antimatter particle with the same mass as an electron, making it much lighter than a proton. Protons are nearly eighteen hundred times heavier than electrons and positrons due to their quark composition. Claiming a positron is heavier than a proton contradicts fundamental particle physics mass measurements. Subatomic particle masses are established constants measured in units of energy or atomic mass units. Positrons share identical mass and spin properties with electrons but possess opposite electrical charges. Protons reside inside atomic nuclei alongside neutrons, whereas positrons are emitted in radioactive decay.
Particle physics calculations rely on accurate mass ratios between leptons like positrons and baryons like protons. Medical physicists account for positron mass when analyzing annihilation reactions in diagnostic imaging scanners. Educational assessments use incorrect particle weight comparisons to test students' understanding of subatomic physics. The nucleus of a ordinary hydrogen-1 atom consists of a single proton, making this statement true. A beta-ray particle is indeed identical in mass and charge to a high-speed orbital electron. The mass of an electron is approximately one eighteen-hundredth of a light proton, confirming accuracy.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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