Marie Curie coined the term _____ to describe the spontaneous emission of energy rays by matter.
Correct Answer:
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Q49: Tritium is an isotope of hydrogen
Q50: In Rutherford's gold foil experiments, the observation
Q51: List out the properties of protons, neutrons,
Q52: The symbol for sodium is Si.
Q53: Explain the principle behind the working of
Q55: _ rays can be stopped by a
Q56: Most non-metal solids are lustrous.
Q57: Atomic number of an element is defined
Q58: A mass spectrometer measures the _ of
Q59: An alpha particle consists off:
A) two electrons
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