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Which among the following is a positively charged particle emitted by a radioactive element?
- a)Cathode ray
- b)Beta ray
- c)Alpha ray
- d)More than one of the above
- e)None of the above
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which among the following is a positively charged particle emitted by ...
The correct answer is -Alpha ray.
Key Points
Alpha Ray
Key Points
Alpha Ray
- Alpha rays are positively charged particles consisting of two protons and two neutrons.
- They are produced through the decay of heavy, unstable atomic nuclei and are emitted in a narrow, straight path.
- They were first discovered in the late 19th century by Ernest Rutherford.
- Alpha rays play a critical role in studying the nature of the atomic nucleus and nuclear physics.
- Alpha rays are produced during alpha decay when a nucleus has too many protons and too little binding energy to hold them together.
- The nucleus will emit an alpha particle, reducing the number of protons and increasing the stability of the atom.
- Alpha rays are highly ionizing.
- They can cause significant damage to living tissues if they come into direct contact.
- Alpha rays are very short-range, typically only traveling a few centimeters in the air.
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Which among the following is a positively charged particle emitted by ...
Understanding Radioactive Emission
Radioactive elements can emit different types of particles as they decay. The main types of emissions include alpha rays, beta rays, and gamma rays.
Types of Rays Emitted
- Alpha Rays:
- Consist of 2 protons and 2 neutrons (essentially a helium nucleus).
- Positively charged due to the presence of protons.
- Emitted during alpha decay of heavy elements like uranium and radium.
- Beta Rays:
- Consist of high-energy, high-speed electrons (beta minus) or positrons (beta plus).
- Beta minus rays carry a negative charge, while beta plus rays are positively charged.
- However, in the context of the question, beta rays are primarily negatively charged.
- Gamma Rays:
- Not particles but electromagnetic radiation.
- They carry no charge and do not consist of matter particles.
Conclusion
In the context of the question, the correct answer is option C: Alpha rays. They are the only positively charged particles emitted by radioactive elements.
Key Takeaway
- Only alpha rays are positively charged among the options listed.
- Beta rays can be positively charged, but they are primarily known for their negative charge.
- Gamma rays, being electromagnetic waves, do not carry any charge.
Understanding these distinctions helps clarify the nature of emissions from radioactive materials.
Radioactive elements can emit different types of particles as they decay. The main types of emissions include alpha rays, beta rays, and gamma rays.
Types of Rays Emitted
- Alpha Rays:
- Consist of 2 protons and 2 neutrons (essentially a helium nucleus).
- Positively charged due to the presence of protons.
- Emitted during alpha decay of heavy elements like uranium and radium.
- Beta Rays:
- Consist of high-energy, high-speed electrons (beta minus) or positrons (beta plus).
- Beta minus rays carry a negative charge, while beta plus rays are positively charged.
- However, in the context of the question, beta rays are primarily negatively charged.
- Gamma Rays:
- Not particles but electromagnetic radiation.
- They carry no charge and do not consist of matter particles.
Conclusion
In the context of the question, the correct answer is option C: Alpha rays. They are the only positively charged particles emitted by radioactive elements.
Key Takeaway
- Only alpha rays are positively charged among the options listed.
- Beta rays can be positively charged, but they are primarily known for their negative charge.
- Gamma rays, being electromagnetic waves, do not carry any charge.
Understanding these distinctions helps clarify the nature of emissions from radioactive materials.
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Which among the following is a positively charged particle emitted by a radioactive element?a)Cathode rayb)Beta rayc)Alpha rayd)More than one of the abovee)None of the aboveCorrect answer is option 'C'. Can you explain this answer?
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