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Atomic Structure and Properties of Nuclei

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Questions and Answers

What happens to the nuclear force when an atom gets too big?

It disappears
It remains the same
It becomes stronger
It becomes weaker (correct)

What is the purpose of adding neutrons to a nucleus?

To decrease the number of electrons
To decrease the nuclear force
To increase the number of protons
To increase the stability of the nucleus (correct)

What is the atomic number of an atom with 8 protons and 9 neutrons?

17
25
9
8 (correct)

What is the mass of an iron nucleus with mass number A = 56?

9.3 X 10^-23 kg (D) Signup and view all the answers

What is the binding energy of a nucleus with 6 protons and 6 neutrons?

92 MeV (D) Signup and view all the answers

What is the density of a nucleus of atomic number A?

10^17 kg/m^3 (D) Signup and view all the answers

What is the radius of a carbon nucleus?

3 x 10^-15 m (B) Signup and view all the answers

What is the average density of nuclear material in a carbon nucleus?

10^14 kg/m^3 (A) Signup and view all the answers

What is the binding energy per nucleon of an oxygen nucleus?

7.98 MeV/nucleon (C) Signup and view all the answers

What is the relationship between the force of attraction or repulsion between two electrically charged particles and the distance between them?

The force is inversely proportional to the square of the distance between them (C) Signup and view all the answers

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