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WorksheetsRadioactivity
Total questions: 10
Worksheet time: 4mins
A radioactive atom is any atom that contains an unstable _____.
energy level
nucleus
orbital
electron
What is the mass number of this isotope?
131
53
184
78
An alpha particle is made up of
2 protons and 4 neutrons
1 proton and 1 neutron
2 protons and 2 neutrons
4 protons and 2 neutrons
When a substance undergoes beta decay
The atomic number increases by 1
The atomic number decreases by 2
The atomic number does not change
alpha, beta, gamma
What is an isotope
An atom with the same number of neutrons different number of protons
An atom that has lost or gained an electron
An atom with the same number of protons, different number of neutrons
An atom with the same number of electrons and different neutrons
The diagram shows radioactive waste thrown into the ocean that causes mutations in aquatic life. Why does this happen?
Radiation can damage cells & DNA
The energy released heated the seawater.
The fish used the radiation to treat cancer.
Radiation therapy can be used to treat what condition?
acne
cancer
indigestion
