WorksheetsRadioactivity and Nucleus Discovery
Total questions: 10
Worksheet time: 5mins
Who discovered radioactivity?
Albert Einstein
Isaac Newton
Henri Becquerel
Marie Curie
What are the three types of radiation emitted during radioactive decay?
Alpha rays, beta rays, and gamma particles
Alpha particles, beta particles, and gamma rays
Delta particles, beta particles, and gamma rays
Alpha particles, beta rays, and gamma particles
What is the unit used to measure radioactivity?
Becquerel (Bq)
Curie (Ci)
Sievert (Sv)
Gray (Gy)
Who discovered the nucleus of an atom?
Marie Curie
Isaac Newton
Niels Bohr
Ernest Rutherford
What is the charge of the nucleus of an atom?
Positive
Zero
Neutral
Negative
What is the mass of the nucleus of an atom compared to the whole atom?
75%
99.95%
90%
50%
What is the name of the process by which an unstable nucleus emits radiation?
Nuclear fusion
Particle collision
Chemical reaction
Radioactive decay
What is the most common element used in nuclear reactors?
Uranium
Plutonium
Thorium
Hydrogen
What is the main source of energy in the sun?
Solar panels
Coal combustion
Wind turbines
Nuclear fusion
What is the process by which two light nuclei combine to form a heavier nucleus?
Atomic bonding
Nuclear fusion
Nuclear fission
Chemical reaction
