Ap Physics B - Nuclear Physic Pt 1

A nucleon is either A) a proton or a neutron. B) a neutron or an electron. C) a positron or an electron. D) a proton or an electron.

A) a proton or a neutron.

The hydrogen nucleus consists of A) a single proton. B) one proton and two neutrons. C) one proton and one neutron. D) a single neutron.

A) a single proton.

The binding energy per nucleon A) has a maximum near iron in the periodic table. B) is approximately constant throughout the periodic table, except for very light nuclei. C) increases steadily as we go to heavier elements. D) decreases steadily as we go to heavier elements.

A) has a maximum near iron in the periodic table.

Atoms with the same atomic number but with different numbers of neutrons are referred to as A) isotopes. B) nuclides. C) nucleons. D) none of the given answers

A) isotopes.

The atomic number of an element is the same as the number of its A) protons. B) neutrons. C) none of these D) nucleons.

A) protons.

What is the binding energy of a nucleus? A) the energy released when nucleons bind together to form a stable nucleus B) the mass of the nucleus times c C) the energy needed to remove one of the nucleons D) the average energy with which any nucleon is bound in the nucleus

A) the energy released when nucleons bind together to form a stable nucleus

What does the mass number of a nucleus indicate? A) the number of neutrons and protons present B) the number of protons present C) the number of neutrons present D) the average atomic mass of the element

A) the number of neutrons and protons present

To which of the following is the atomic number of a given element equivalent? A) the number of protons in the nucleus B) the number of electrons in the outer shells C) the sum of the protons and neutrons in the nucleus D) the number of neutrons in the nucleus

A) the number of protons in the nucleus

The binding energy per nucleon is A) directly proportional to atomic number. B) none of the given answers C) the same for all atoms. D) inversely proportional to atomic number.

B) none of the given answers

The mass of an atom is A) evenly divided between the nucleus and the surrounding electron cloud. B) approximately equally divided between neutrons, protons, and electrons. C) concentrated in the nucleus. D) concentrated in the cloud of electrons surrounding the nucleus.

C) concentrated in the nucleus.

Different isotopes of an element have different numbers of A) photons. B) protons. C) neutrons. D) hadrons. E) none of these

C) neutrons.

The atomic mass number of an element is the same as the number of its A) neutrons. B) none of these C) nucleons. D) protons.

C) nucleons.

Rutherford's experiments involving the use of alpha particle beams directed onto thin metal foils demonstrated the existence of which of the following? A) proton B) positron C) nucleus D) neutron

C) nucleus

The atomic mass unit is defined as A) the mass of an electron. B) the mass of a hydrogen-1 atom. C) one twelfth the mass of a carbon-12 atom. D) the mass of a proton.

C) one twelfth the mass of a carbon-12 atom.

When nucleons join to form a stable nucleus, energy is A) absorbed. B) destroyed. C) released. D) not transferred.

C) released.

The mass of an atomic nucleon is nearly A) twice the mass of an electron. B) four times the mass of an electron. C) two thousand times the mass of an electron. D) a thousand times the mass of an electron.

C) two thousand times the mass of an electron.

If an atom's atomic number is given by Z, its atomic mass by A, and its neutron number by N, which of the following is correct? A) none of the given answers B) N = Z - A C) N = A + Z D) N = A - Z

D) N = A - Z

Which of the following statements concerning the nuclear force is false? A) The nuclear force acts on both protons and neutrons. B) The nuclear force is attractive and not repulsive. C) The nuclear force is very short-ranged. D) The nuclear force is very weak and much smaller in relative magnitude than the electrostatic and gravitational forces.

D) The nuclear force is very weak and much smaller in relative magnitude than the electrostatic and gravitational forces.

When a neutron is emitted from an unstable nucleus, the atomic mass number of the nucleus A) none of the given answers B) increases by 1. C) does not change. D) decreases by 1.

D) decreases by 1.

Which of the atomic particles has the least mass? A) nucleon B) proton C) neutron D) electron

D) electron

The number of protons in an atom is A) the same for all elements. B) zero. C) equal to the number of neutrons. D) equal to the number of electrons.

D) equal to the number of electrons.

Compared to the masses of its separate protons and neutrons, the total mass of a stable nucleus is always A) the same. B) greater. C) zero. D) less.

D) less.

The binding energy of a nucleus is contributed to A) alpha decay. B) too many neutrons. C) radioactivity. D) mass defect.

D) mass defect.

An atom's mass number is determined by the number of A) protons in its nucleus. B) alpha particles in its nucleus. C) neutrons in its nucleus. D) nucleons in its nucleus.

D) nucleons in its nucleus.

The nucleus of an atom is made up of which of the following combinations of particles? A) electrons and neutrons B) protons, electrons, and neutrons C) electrons and protons D) protons and neutrons

D) protons and neutrons

An atom's atomic number is determined by the number of A) neutrons in its nucleus. B) alpha particles in its nucleus. C) nucleons in its nucleus. D) protons in its nucleus.

D) protons in its nucleus.

Isotopes of an element have nuclei with A) a different number of protons, and a different number of neutrons. B) a different number of protons, and the same number of neutrons. C) the same number of protons, and the same number of neutrons. D) the same number of protons, but different numbers of neutrons.

D) the same number of protons, but different numbers of neutrons.

An atom with an imbalance of electrons to protons is A) an isotope. B) a hadron. C) a baryon. D) none of these E) an ion.

E) an ion.