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Extremely Hard Science Quiz Even Einstein would scratch his head!
In chemistry, what is the island of stability?
In 1986, which Soviet town was the location of a nuclear explosion?
Which number group in the Periodic Table contains oxygen?
Janus is a moon of which planet?
Which of these elements' chemical symbols comes first alphabetically?
Electrical charge is caused by the movement of what?
Which of these surfaces is reflective?
What percentage of marine fish species inhabit coral reefs?
In an element the number of protons is equal to the number of what?
Which of these have a positive charge?
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