The atomic nucleus consists of:
(a) Protons only
(b) Neutrons only
(c) Protons and neutrons
(d) Electrons
Answer: (c) Protons and neutrons
The number of protons in an atom is called the:
(a) Atomic mass
(b) Atomic number
(c) Isotope number
(d) Neutron number
Answer: (b) Atomic number
Isotopes of an element have the same number of:
(a) Protons
(b) Neutrons
(c) Electrons
(d) Protons and neutrons
Answer: (a) Protons
The process of unstable atomic nuclei breaking apart and releasing energy is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (c) Radioactivity
The particle emitted during alpha decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (c) Alpha particle
The particle emitted during beta decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (d) Beta particle
The process of combining two atomic nuclei to form a heavier nucleus is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (b) Nuclear fusion
The most stable shape for atomic nuclei is:
(a) Spherical
(b) Cylindrical
(c) Cubic
(d) Irregular
Answer: (a) Spherical
The unit used to measure radioactivity is the:
(a) Watt
(b) Ampere
(c) Curie
(d) Joule
Answer: (c) Curie
The equation E = mc^2 is known as:
(a) Planck’s equation
(b) Bohr’s equation
(c) Einstein’s equation
(d) Schrödinger’s equation
Answer: (c) Einstein’s equation
The process of using a controlled chain reaction to release energy from atomic nuclei is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (a) Nuclear fission
The particle with the least mass in an atom is the:
(a) Proton
(b) Neutron
(c) Electron
(d) Nucleus
Answer: (c) Electron
The process of an atom or nucleus changing into a different element or isotope is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (d) Decay
The half-life of a radioactive substance is defined as the time it takes for:
(a) Half of the radioactive atoms to decay
(b) All of the radioactive atoms to decay
(c) The decay rate to double
(d) The decay rate to halve
Answer: (a) Half of the radioactive atoms to decay
The process of using a controlled chain reaction to release energy from atomic nuclei is the principle behind:
(a) Nuclear power plants
(b) Solar panels
(c) Wind turbines
(d) Hydroelectric power plants
Answer: (a) Nuclear power plants
The atomic number of an element determines the number of:
(a) Protons
(b) Neutrons
(c) Electrons
(d) Protons and neutrons
Answer: (a) Protons
The process of an unstable atomic nucleus emitting high-energy electromagnetic radiation is called:
(a) Alpha decay
(b) Beta decay
(c) Gamma decay
(d) Nuclear fission
Answer: (c) Gamma decay
The particle emitted during gamma decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Photon
Answer: (d) Photon
The process of using a controlled chain reaction to release energy from atomic nuclei is the principle behind:
(a) Nuclear power plants
(b) Solar panels
(c) Wind turbines
(d) Hydroelectric power plants
Answer: (a) Nuclear power plants
The process of an unstable atomic nucleus emitting high-energy electromagnetic radiation is called:
(a) Alpha decay
(b) Beta decay
(c) Gamma decay
(d) Nuclear fission
Answer: (c) Gamma decay
The particle emitted during gamma decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Photon
Answer: (d) Photon
The process of an atom or nucleus changing into a different element or isotope is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (d) Decay
The half-life of a radioactive substance is defined as the time it takes for:
(a) Half of the radioactive atoms to decay
(b) All of the radioactive atoms to decay
(c) The decay rate to double
(d) The decay rate to halve
Answer: (a) Half of the radioactive atoms to decay
The process of an unstable atomic nucleus breaking apart and releasing energy is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (c) Radioactivity
The particle emitted during alpha decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (c) Alpha particle
The particle emitted during beta decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (d) Beta particle
The process of combining two atomic nuclei to form a heavier nucleus is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (b) Nuclear fusion
The most stable shape for atomic nuclei is:
(a) Spherical
(b) Cylindrical
(c) Cubic
(d) Irregular
Answer: (a) Spherical
The unit used to measure radioactivity is the:
(a) Watt
(b) Ampere
(c) Curie
(d) Joule
Answer: (c) Curie
The equation E = mc^2 is known as:
(a) Planck’s equation
(b) Bohr’s equation
(c) Einstein’s equation
(d) Schrödinger’s equation
Answer: (c) Einstein’s equation
The process of using a controlled chain reaction to release energy from atomic nuclei is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (a) Nuclear fission
The particle with the least mass in an atom is the:
(a) Proton
(b) Neutron
(c) Electron
(d) Nucleus
Answer: (c) Electron
The process of an atom or nucleus changing into a different element or isotope is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (d) Decay
The half-life of a radioactive substance is defined as the time it takes for:
(a) Half of the radioactive atoms to decay
(b) All of the radioactive atoms to decay
(c) The decay rate to double
(d) The decay rate to halve
Answer: (a) Half of the radioactive atoms to decay
The process of using a controlled chain reaction to release energy from atomic nuclei is the principle behind:
(a) Nuclear power plants
(b) Solar panels
(c) Wind turbines
(d) Hydroelectric power plants
Answer: (a) Nuclear power plants
The atomic number of an element determines the number of:
(a) Protons
(b) Neutrons
(c) Electrons
(d) Protons and neutrons
Answer: (a) Protons
The process of an unstable atomic nucleus emitting high-energy electromagnetic radiation is called:
(a) Alpha decay
(b) Beta decay
(c) Gamma decay
(d) Nuclear fission
Answer: (c) Gamma decay
The particle emitted during gamma decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Photon
Answer: (d) Photon
The process of using a controlled chain reaction to release energy from atomic nuclei is the principle behind:
(a) Nuclear power plants
(b) Solar panels
(c) Wind turbines
(d) Hydroelectric power plants
Answer: (a) Nuclear power plants
The process of an unstable atomic nucleus emitting high-energy electromagnetic radiation is called:
(a) Alpha decay
(b) Beta decay
(c) Gamma decay
(d) Nuclear fission
Answer: (c) Gamma decay
The particle emitted during gamma decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Photon
Answer: (d) Photon
The process of an atom or nucleus changing into a different element or isotope is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (d) Decay
The half-life of a radioactive substance is defined as the time it takes for:
(a) Half of the radioactive atoms to decay
(b) All of the radioactive atoms to decay
(c) The decay rate to double
(d) The decay rate to halve
Answer: (a) Half of the radioactive atoms to decay
The process of an unstable atomic nucleus breaking apart and releasing energy is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (c) Radioactivity
The particle emitted during alpha decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (c) Alpha particle
The particle emitted during beta decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (d) Beta particle
The process of combining two atomic nuclei to form a heavier nucleus is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (b) Nuclear fusion
The most stable shape for atomic nuclei is:
(a) Spherical
(b) Cylindrical
(c) Cubic
(d) Irregular
Answer: (a) Spherical
The unit used to measure radioactivity is the:
(a) Watt
(b) Ampere
(c) Curie
(d) Joule
Answer: (c) Curie
The equation E = mc^2 is known as:
(a) Planck’s equation
(b) Bohr’s equation
(c) Einstein’s equation
(d) Schrödinger’s equation
Answer: (c) Einstein’s equation
The process of using a controlled chain reaction to release energy from atomic nuclei is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (a) Nuclear fission
The particle with the least mass in an atom is the:
(a) Proton
(b) Neutron
(c) Electron
(d) Nucleus
Answer: (c) Electron
The process of an atom or nucleus changing into a different element or isotope is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (d) Decay
The half-life of a radioactive substance is defined as the time it takes for:
(a) Half of the radioactive atoms to decay
(b) All of the radioactive atoms to decay
(c) The decay rate to double
(d) The decay rate to halve
Answer: (a) Half of the radioactive atoms to decay
The process of using a controlled chain reaction to release energy from atomic nuclei is the principle behind:
(a) Nuclear power plants
(b) Solar panels
(c) Wind turbines
(d) Hydroelectric power plants
Answer: (a) Nuclear power plants
The atomic number of an element determines the number of:
(a) Protons
(b) Neutrons
(c) Electrons
(d) Protons and neutrons
Answer: (a) Protons
The process of an unstable atomic nucleus emitting high-energy electromagnetic radiation is called:
(a) Alpha decay
(b) Beta decay
(c) Gamma decay
(d) Nuclear fission
Answer: (c) Gamma decay
The particle emitted during gamma decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Photon
Answer: (d) Photon
The process of using a controlled chain reaction to release energy from atomic nuclei is the principle behind:
(a) Nuclear power plants
(b) Solar panels
(c) Wind turbines
(d) Hydroelectric power plants
Answer: (a) Nuclear power plants
The process of an unstable atomic nucleus emitting high-energy electromagnetic radiation is called:
(a) Alpha decay
(b) Beta decay
(c) Gamma decay
(d) Nuclear fission
Answer: (c) Gamma decay
The particle emitted during gamma decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Photon
Answer: (d) Photon
The process of an atom or nucleus changing into a different element or isotope is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (d) Decay
The half-life of a radioactive substance is defined as the time it takes for:
(a) Half of the radioactive atoms to decay
(b) All of the radioactive atoms to decay
(c) The decay rate to double
(d) The decay rate to halve
Answer: (a) Half of the radioactive atoms to decay
The process of an unstable atomic nucleus breaking apart and releasing energy is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (c) Radioactivity
The particle emitted during alpha decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (c) Alpha particle
The particle emitted during beta decay is a:
(a) Proton
(b) Neutron
(c) Alpha particle
(d) Beta particle
Answer: (d) Beta particle
The process of combining two atomic nuclei to form a heavier nucleus is called:
(a) Nuclear fission
(b) Nuclear fusion
(c) Radioactivity
(d) Decay
Answer: (b) Nuclear fusion
The most stable shape for atomic nuclei is:
(a) Spherical
(b) Cylindrical
(c) Cubic
(d) Irregular
Answer: (a) Spherical
The unit used to measure radioactivity is the:
(a) Watt
(b) Ampere
(c) Curie
(d) Joule
Answer: (c) Curie
The equation E = mc^2 is known as:
(a) Planck’s equation
(b) Bohr’s equation
(c) Einstein’s equation
(d) Schrödinger’s equation
Answer: (c) Einstein’s equation
