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10Radioactive elements have unstable nuclei.
Uranium and plutonium are examples of radioactive elements.
Radioactive elements have atomic numbers less than 20.
Radiation emitted from radioactive elements is harmless.
Henri Becquerel studied radioactivity in 1896.
Nuclear fission splits a heavy nucleus into smaller nuclei.
Mass is completely conserved during nuclear fission.
Nuclear fusion combines lighter nuclei to form heavier nuclei.
Nuclear fusion naturally occurs in the sun and stars.
Energy is released in the form of alpha, beta, and gamma radiations in fission.
Percentage: 0%
Which of the following is a radioactive element?
Which of the following is a radioactive element?
Radioactive emission includes:
Nuclear fission occurs when:
In nuclear fission of uranium, which elements are formed?
Henri Becquerel is known for the discovery of:
Nuclear fusion in the sun converts:
Which condition is required for nuclear fusion?
Energy released in nuclear fission comes from:
Nuclear fusion is:
Radioactive elements have ______ nuclei.
Uranium and plutonium are examples of ______ elements.
Atomic numbers of most radioactive elements are greater than ______.
Radiation emitted by radioactive elements is called ______ emission.
Henri Becquerel studied radioactivity in ______.
The process of splitting a nucleus is called nuclear ______.
Nuclear fission releases ______ from lost mass.
Nuclear fusion combines ______ nuclei to form heavy nuclei.
Fusion naturally occurs in ______ and stars.
Four atoms of hydrogen combine to form an atom of ______ in fusion.