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Neutron Discovery and Properties

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Questions and Answers

What is the mass of a neutron?

1.67262 × 10-27 kg

1.007276 amu

1.67493 × 10–27 kg (correct)

9.10938356 × 10-31 kg

Who discovered the neutron?

Niels Bohr

J.J. Thomson

Ernest Rutherford

James Chadwick (correct)

What is the charge of a proton?

No charge

Negative charge

Neutral charge

Positive charge (correct)

How do protons form in a nucleus?

When struck by alpha particles (D) Signup and view all the answers

What is the relative mass of a proton in atomic mass units (amu)?

1.007276 amu (B) Signup and view all the answers

What is the charge of a neutron?

No charge (A) Signup and view all the answers

How did Rutherford discover that hydrogen nuclei form protons?

By observing alpha-particle scattering experiments (B) Signup and view all the answers

What is the mass of an electron?

-9.10938356 × 10-31 kg (A) Signup and view all the answers