Atomic Physics Quiz U-8

What is the term used to describe bodies that absorb all electromagnetic radiation?

• Transparent bodies

• Black bodies

• Reflective bodies

• Translucent bodies

Who proposed the model of the atom where electrons can only exist at specific energy states?

• Isaac Newton

• Albert Einstein

• Ernest Rutherford

• Niels Bohr

What is the term used to explain the phenomenon where some particles are deflected at large angles in Rutherford's model of the atom?

• Quantum tunneling

• Photoelectric effect

• Nuclear fusion

• Uncertainty principle

What is the relationship between the mass number (A), atomic number (Z), and number of neutrons (N) in an isotope?

• A = Z - N

• A = Z x N

• A = Z + N

• A = Z / N

What force is responsible for holding particles in a nucleus together?

• Weak nuclear force

• Strong nuclear force

• Gravitational force

• Electromagnetic force

What is an isotope of an element?

• A nuclide with the same number of protons and neutrons

• A nuclide with the same number of neutrons but different number of protons

• A nuclide with different number of protons and neutrons

• A nuclide with the same number of protons but different number of neutrons

What is the relationship between the radius and mass number of a nucleus?

• r = (1.2 × 10^-15)A^(1/2) m

• r = (1.2 × 10^-15)A^(1/3) m

• r = (1.2 × 10^-15)A m

• r = (1.2 × 10^-15)A^2 m

What is the charge and mass relationship between an electron and a proton?

• 1/10

• 1/1000

• 1/2

• 1/1836

What is the strong nuclear force?

• A force that attracts particles to the nucleus

• A force that repels particles in a nucleus

• A force that holds particles in a nucleus together

• A force that repels particles from the nucleus

Why does the total binding energy of a nucleus increase more slowly after iron?

• Decrease in neutrons

• Decrease in protons

• Increase in disruptive energy from electrostatic forces

• Increase in binding energy from electrostatic forces