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Atomic Structure and Electric Charges Quiz

Test your knowledge on atomic structure and electric charges with this quiz! Explore the composition of atoms, the roles of protons, neutrons, and electrons, and discover the precise values of their masses.

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Questions and Answers

Which particles are found in the nucleus of an atom?

Protons and neutrons

What is the most precise value of the mass of a proton?

1.67262171 x 10-27 kg

What is the most precise value of the mass of an electron?

9.1093826 x 10-31 kg

What is the most precise value of the magnitude of the charge of an electron or a proton?

<p>1.60217653 x 10-19 C</p> Signup and view all the answers

Where is the majority of the mass of an atom concentrated?

<p>In the nucleus</p> Signup and view all the answers

Which of the following statements about calculating radioisotope activity using the concept of half-life is most correct?

<p>The half-life of a radioisotope is the time it takes for half of the atoms in a sample to decay.</p> Signup and view all the answers

Which of the following is a correct application of the concept of half-life in calculating radioisotope activity?

<p>Measuring the amount of radiation emitted by a radioisotope in a given time period.</p> Signup and view all the answers

Which of the following is a common misconception about calculating radioisotope activity using the concept of half-life?

<p>The half-life of a radioisotope can be used to determine the initial amount of the radioisotope in a sample.</p> Signup and view all the answers

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