Subatomic Particles Quiz

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Questions: 10 | Attempts: 142 | Updated: Aug 1, 2024

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Take the Subatomic Particles Quiz, designed to evaluate and deepen your understanding of the fundamental components that make up atoms. This quiz will test your knowledge of protons, neutrons, electrons, and other particles such as quarks and leptons that play crucial roles in the structure and behavior of atoms.

Each question has been carefully formulated to challenge your grasp of how these particles interact within atoms and what properties they possess. You will encounter questions ranging from the charges and masses of these particles to their roles in various physical phenomena and nuclear reactions.

This quiz helps you understand atomic structure and Read morethe principles of particle physics. By participating, you will sharpen your scientific thinking and gain a clearer comprehension of the building blocks of matter.

Subatomic Particles Questions and Answers

1.

What particle is negatively charged?
- A.
  
  Neutron
- B.
  
  Electron
- C.
  
  Proton
- D.
  
  Positron
Correct Answer
B. Electron

Explanation
The electron is a subatomic particle with a negative charge. It is one of the basic components of atoms, orbiting the nucleus, which contains protons and neutrons. Electrons play a crucial role in chemical reactions and electrical conductivity. Their negative charge balances the positive charge of protons in the nucleus, stabilizing the atom and determining the atom’s chemical properties through interactions with other atoms.

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2.

Which subatomic particle is found in the nucleus of an atom?
- A.
  
  Electron
- B.
  
  Muon
- C.
  
  Neutron
- D.
  
  Photon
Correct Answer
C. Neutron

Explanation
Neutrons are subatomic particles found in the nucleus of an atom alongside protons. Unlike protons, neutrons carry no electrical charge, which is why they are called neutral particles. They contribute to the atomic mass and provide stability to the nucleus by reducing electrostatic forces between protons, which would otherwise repel each other due to their positive charge.

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3.

What is the charge of a proton?
- A.
  
  Negative
- B.
  
  Neutral
- C.
  
  Positive
- D.
  
  No charge
Correct Answer
C. Positive

Explanation
A proton is a positively charged subatomic particle located in the nucleus of an atom. Each proton carries a single positive charge. The number of protons in the nucleus defines the atomic number of an element and determines the chemical properties of the element, including its place on the periodic table.

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4.

Which particle has approximately the same mass as a proton?
- A.
  
  Neutron
- B.
  
  Electron
- C.
  
  Photon
- D.
  
  Positron
Correct Answer
A. Neutron

Explanation
Neutrons have approximately the same mass as protons, both significantly heavier than electrons. While the mass of a proton is about 1 atomic mass unit, the neutron is slightly heavier but still very close to 1 atomic mass unit. This similarity in mass is crucial for the overall stability of the nucleus, as the balance of neutrons to protons affects the nucleus's stability and the isotopes of the element.

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5.

What subatomic particle is responsible for the majority of an atom's mass?
- A.
  
  Electron
- B.
  
  Proton
- C.
  
  Neutron
- D.
  
  Positron
Correct Answer
C. Neutron

Explanation
Neutrons and protons, collectively known as nucleons, are responsible for the majority of an atom’s mass. Electrons have a negligible mass compared to nucleons. The mass of an atom is concentrated in its nucleus, where neutrons and protons reside. Neutrons add mass without adding charge, which helps in adding stability to the nucleus, especially in heavier elements.

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6.

Which of the following is a leptonic particle?
- A.
  
  Proton
- B.
  
  Neutron
- C.
  
  Electron
- D.
  
  Neutrino
Correct Answer
D. Neutrino

Explanation
The neutrino is a subatomic particle that is a lepton, just like the electron. Leptons are a family of particles that do not participate in strong nuclear interactions but are subject to weak interactions and gravity. Neutrinos are extremely light, nearly massless, and neutral, interacting very weakly with other matter.

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7.

Which particle mediates the weak nuclear force?
- A.
  
  Gluon
- B.
  
  Photon
- C.
  
  W boson
- D.
  
  Graviton
Correct Answer
C. W boson

Explanation
The W boson is a fundamental particle that mediates the weak nuclear force, one of the four fundamental forces in the universe. This force is responsible for processes like radioactive decay. The W boson can carry a positive or negative charge and is involved in nuclear processes where protons are converted to neutrons or vice versa.

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1
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8.

What type of particle is an antiparticle of the electron?
- A.
  
  Positron
- B.
  
  Proton
- C.
  
  Neutron
- D.
  
  Photon
Correct Answer
A. Positron

Explanation
The positron is the antiparticle of the electron. It has the same mass as an electron but carries a positive charge. When a positron encounters an electron, they annihilate each other, typically producing gamma rays. Positrons are involved in processes like beta-plus decay, a type of radioactive decay.

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9.

Which particle is involved in beta decay?
- A.
  
  Neutrino
- B.
  
  Photon
- C.
  
  Electron
- D.
  
  Positron
Correct Answer
A. Neutrino

Explanation
In beta decay, particularly beta-minus decay, an electron is one of the emitted particles. This process occurs when a neutron in an atom's nucleus transforms into a proton, an electron, and an anti-neutrino. The electron is then ejected from the nucleus, carrying away some of the decay energy.

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10.

What subatomic particle has no charge and is found in the nucleus?
- A.
  
  Proton
- B.
  
  Electron
- C.
  
  Muon
- D.
  
  Neutron
Correct Answer
D. Neutron

Explanation
Neutrons are subatomic particles with no charge, found in the nucleus of an atom. Their neutrality helps offset the repulsion between positively charged protons, contributing to the stability of the nucleus, especially in larger atoms where the number of protons would otherwise cause the nucleus to split apart due to electrostatic repulsion.

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Current Version
Aug 01, 2024

Quiz Edited by
ProProfs Editorial Team
Oct 02, 2023

Quiz Created by
Surajit Dey

Subatomic Particles Quiz

Subatomic Particles Questions and Answers

What particle is negatively charged?

Which subatomic particle is found in the nucleus of an atom?

What is the charge of a proton?

Which particle has approximately the same mass as a proton?

What subatomic particle is responsible for the majority of an atom's mass?

Which of the following is a leptonic particle?

Which particle mediates the weak nuclear force?

What type of particle is an antiparticle of the electron?

Which particle is involved in beta decay?

What subatomic particle has no charge and is found in the nucleus?