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24 questions
In the symbol 167N what the 7 stand for?
Mass number
Atomic number
Atomic mass
Number of neutrons
In the event of a nuclear explosion where would be the safest place to hide?
Paper house
Log cabin
Thick concrete building in the basement
Building with windows
What type of reaction can be controlled to produce great amounts of energy at the expense of toxic waste?
Fusion
Fission
Fishin
Feasion